Question 1

-These equations are "inverses" of each other. (This topic will be explored in Chapter 9.) We can analyze the equations by graphing them on a separate piece of graph paper.
Graph the first equation as $Y = \frac{5(X - 32)}{9}$ and the second as $Y = \frac{9X}{5} + 32$.
(You may wish to use a graphing calculator to help you graph the lines.) Label your Xand Y-intercepts on the graph

Accepted Answer

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-These equations are "inverses" of each other....

Question 2

-Analyze your graph. Does there appear to be a point of intersection? If so, use one of the three methods discussed in this section (graphing, substitution, or elimination) to find the exact point of intersection
X =______________
Y =______________

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-Analyze your graph. Does there appear to...

Question 3

-What does this intersection point mean in terms of the Fahrenheit and Celsius temperature scales?

Accepted Answer

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-What does this intersection point mean in...

Question 4

Quick Print Photos, Inc., develops 1425 photos in a single day. A portion of these photos were 4 in. × 6 in. prints and sold for $0.26 each. The remaining photos were 3.5 in. × 5 in. prints and sold for $0.17 each. How many of each size photo were sold if total sales for the day were $291.84?
-Show the two equations needed to solve this problem. What do the variables in these equations represent?

Accepted Answer

The answer of Quick Print Photos, Inc., develops 1425 photos...

Question 5

Quick Print Photos, Inc., develops 1425 photos in a single day. A portion of these photos were 4 in. × 6 in. prints and sold for $0.26 each. The remaining photos were 3.5 in. × 5 in. prints and sold for $0.17 each. How many of each size photo were sold if total sales for the day were $291.84?
-Solve the system of equations and show your work here.
The number of 4 in. × 6 in. photos sold was _____________.
The number of 3.5 in. × 5 in. photos sold was ____________.

Accepted Answer

The answer of Quick Print Photos, Inc., develops 1425 photos...

Question 6

Solve each system of equations by graphing.
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The answer of Solve each system of equations by graphing.
-...

Question 7

Solve each system of equations by graphing.
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Accepted Answer

The answer of Solve each system of equations by graphing.
-...

Question 8

Solve each system of equations by the substitution method.
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Accepted Answer

The answer of Solve each system of equations by the...

Question 9

Solve each system of equations by the substitution method.
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Accepted Answer

The answer of Solve each system of equations by the...

Question 10

Solve each system of equations by the elimination method
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Accepted Answer

The answer of Solve each system of equations by the...

Question 11

Solve each system of equations by the elimination method
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Accepted Answer

The answer of Solve each system of equations by the...

Question 12

Solve each system.
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Accepted Answer

The answer of Solve each system.
-...

Question 13

Solve each system.
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Accepted Answer

The answer of Solve each system.
-...

Question 14

Use matrices to solve each system.
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The answer of Use matrices to solve each system.
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Question 15

Use matrices to solve each system.
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Accepted Answer

The answer of Use matrices to solve each system.
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Question 16

Use matrices to solve each system.
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Accepted Answer

The answer of Use matrices to solve each system.
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Question 17

Use matrices to solve each system.
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Accepted Answer

The answer of Use matrices to solve each system.
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Question 18

Graph the solution of each system of linear inequalities.
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Accepted Answer

The answer of Graph the solution of each system of...

Question 19

Graph the solution of each system of linear inequalities.
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Accepted Answer

The answer of Graph the solution of each system of...

Question 20

Solve.
-Five times one number minus a second number is 6. The sum of the numbers is 12. Find the numbers.

Accepted Answer

The answer of Solve.
-Five times one number minus a second...

Quiz 4: Systems of Equations and Inequalities

-Analyze your graph. Does there appear to be a point of intersection? If so, use one of the three methods discussed in this section (graphing, substitution, or elimination) to find the exact point of intersection X = Y =

-What does this intersection point mean in terms of the Fahrenheit and Celsius temperature scales?

Solve each system of equations by graphing. -

Solve each system of equations by graphing. -

Solve each system of equations by the substitution method. -

Solve each system of equations by the substitution method. -

Solve each system of equations by the elimination method -

Solve each system of equations by the elimination method -

Solve each system. -

Solve each system. -

Use matrices to solve each system. -

Use matrices to solve each system. -

Use matrices to solve each system. -

Use matrices to solve each system. -

Graph the solution of each system of linear inequalities. -

Graph the solution of each system of linear inequalities. -

Solve. -Five times one number minus a second number is 6. The sum of the numbers is 12. Find the numbers.

Quiz 4: Systems of Equations and Inequalities

-Analyze your graph. Does there appear to be a point of intersection? If so, use one of the three methods discussed in this section (graphing, substitution, or elimination) to find the exact point of intersection X =______________ Y =______________

-What does this intersection point mean in terms of the Fahrenheit and Celsius temperature scales?

Solve each system of equations by graphing. -

Solve each system of equations by graphing. -

Solve each system of equations by the substitution method. -

Solve each system of equations by the substitution method. -

Solve each system of equations by the elimination method -

Solve each system of equations by the elimination method -

Solve each system. -

Solve each system. -

Use matrices to solve each system. -

Use matrices to solve each system. -

Use matrices to solve each system. -

Use matrices to solve each system. -

Graph the solution of each system of linear inequalities. -

Graph the solution of each system of linear inequalities. -

Solve. -Five times one number minus a second number is 6. The sum of the numbers is 12. Find the numbers.

-Analyze your graph. Does there appear to be a point of intersection? If so, use one of the three methods discussed in this section (graphing, substitution, or elimination) to find the exact point of intersection X = Y =