Question 1

Graph the point  .

Accepted Answer

The answer of Graph the point  ....

Question 2

The price of a 2-hour plumbing repair job is $130 and the price of a 5-hour job is $250. Write an equation for the cost C of a t-hour repair job and use the equation to find the cost of a repair job lasting 9 hours.

Accepted Answer

C = 40t + 50; $410

Question 3

Graph the line through (-1, 3) with slope -2.

Accepted Answer

The answer of Graph the line through (-1, 3) with...

Question 4

Find the slope of the line that contains the points (-11,2) and (8,-12).

Accepted Answer

The answer of Find the slope of the line that...

Question 5

Graph the linear equation  .

Accepted Answer

The answer of Graph the linear equation  ....

Question 6

Find the slope and the y-intercept of the line represented by 12x + 7y = 5.

Accepted Answer

The answer of Find the slope and the y-intercept of...

Question 7

Find the equation (in standard form) of the line through (2, 0) and (4, -1).

Accepted Answer

The answer of Find the equation (in standard form) of...

Question 8

Graph the equation y = -3x + 1.

Accepted Answer

The answer of Graph the equation y = -3x +...

Question 9

Line l goes through (1, 3) and is parallel to the line through (4, 3) and (-3, 1). Find the slope of l.

Accepted Answer

The answer of Line l goes through (1, 3) and...

Question 10

Find the x- and y-intercepts of x + 3y + 2 = 0 and use these intercepts to graph the equation.

Accepted Answer

The answer of Find the x- and y-intercepts of x...

Question 11

Write an equation in slope-intercept form for a line l that goes through (12, -1) and has a slope of  .

Accepted Answer

The answer of Write an equation in slope-intercept form for...

Question 12

The lines are perpendicular. Find the equation (in slope-intercept form) for the solid line.

Accepted Answer

The answer of The lines are perpendicular. Find the equation...

Question 13

Gotham City's budget deficit was $4.5 million in 1991 and $4.6 million in 2000. Find the slope of the line through (1991, 4.5) and (2000, 4.6) and interpret your result.

Accepted Answer

The answer of Gotham City's budget deficit was $4.5 million...

Question 14

Complete the ordered pair so that it satisfies the given equation.
y = -4x + 3: (-10, ___)

Accepted Answer

The answer of Complete the ordered pair so that it...

Question 15

Determine the slope of the line graphed below. Show your work.

Accepted Answer

The answer of Determine the slope of the line graphed...

Question 16

Write a formula that expresses the relationship described below. Use k as a constant of variation.
P varies directly with T

Accepted Answer

The answer of Write a formula that expresses the relationship...

Question 17

A playground equipment manufacturer plans to spend $300,000 on a new facility plus $140 for each swing set made.The formula C = 140n + 300,000 gives the cost in dollars to manufacture n swing sets. What is the marginal cost of the nth swing set? [Hint - the marginal cost of the nth swing set is the difference in cost of producing n + 1 swing sets and n swing sets).

Accepted Answer

The answer of A playground equipment manufacturer plans to spend...

Question 18

Write the equation  in standard form using only integers and a positive coefficient for x.

Accepted Answer

The answer of Write the equation  in standard form...

Question 19

The budget deficit for Central City can be modeled by the equation
D = 0.5n + 6.5
where n is the number of years since 1990 and D is the deficit in millions of dollars. Graph the equation for n ranging from 0 to 20.

Accepted Answer

The answer of The budget deficit for Central City can...

Question 20

Write the equation of the line shown below.

Accepted Answer

The answer of Write the equation of the line shown...

Quiz 3: Section 2: Linear Equations and Inequalities in Two Variables

Graph the point .

The price of a 2-hour plumbing repair job is $130 and the price of a 5-hour job is $250. Write an equation for the cost C of a t-hour repair job and use the equation to find the cost of a repair job lasting 9 hours.

Graph the line through (-1, 3) with slope -2.

Find the slope of the line that contains the points (-11,2) and (8,-12).

Graph the linear equation .

Find the slope and the y-intercept of the line represented by 12x + 7y = 5.

Find the equation (in standard form) of the line through (2, 0) and (4, -1).

Graph the equation y = -3x + 1.

Line l goes through (1, 3) and is parallel to the line through (4, 3) and (-3, 1). Find the slope of l.

Find the x- and y-intercepts of x + 3y + 2 = 0 and use these intercepts to graph the equation.

Write an equation in slope-intercept form for a line l that goes through (12, -1) and has a slope of .

The lines are perpendicular. Find the equation (in slope-intercept form) for the solid line.

Gotham City's budget deficit was $4.5 million in 1991 and $4.6 million in 2000. Find the slope of the line through (1991, 4.5) and (2000, 4.6) and interpret your result.

Complete the ordered pair so that it satisfies the given equation. y = -4x + 3: (-10, ___)

Determine the slope of the line graphed below. Show your work.

Write a formula that expresses the relationship described below. Use k as a constant of variation. P varies directly with T

Write the equation in standard form using only integers and a positive coefficient for x.

The budget deficit for Central City can be modeled by the equation D = 0.5n + 6.5 where n is the number of years since 1990 and D is the deficit in millions of dollars. Graph the equation for n ranging from 0 to 20.

Write the equation of the line shown below.