Question 1

Which one of the following is the graph of a function?
A)  
B)  
C)  
D)

Accepted Answer

The answer of Which one of the following is the...

Question 2

Which one of the following does not define $y$ as a function of $x$ ?
A) $y=\sqrt{x+4}$
B) 
C) $\{(3,6),(4,4),(9,3)\}$
D) $y= 4x + 1$

Accepted Answer

The answer of Which one of the following does not...

Question 3

Give the domain and range of the relation shown in the following.
- 
A) Domain: $(-\infty,-3]$; range: $(-\infty, \infty)$
B) Domain: $(-\infty, \infty)$; range: $(-\infty,-3]$
C) Domain: $[-3, \infty)$; range: $(-\infty, \infty)$
D) Domain: $(-3, \infty)$; range: $(-\infty, \infty)$

Accepted Answer

The answer of Give the domain and range of the...

Question 4

Give the domain and range of the relation shown in the following.
-$\{(4,4),(-6,5),(7,10)\}$
A) Domain: $\{4,-6,7\}$; range: $\{4,5,10\}$
B) Domain: $\{4,-6,7\}$; range: $\{10\}$
C) Domain: $\{4,5,10\}$; range: $\{4,-6,7\}$
D) Domain: $\{4,7\}$; range: $\{4,10\}$

Accepted Answer

The domain of a relation consists of all the first elements of the ordered pairs, and the range consists of all the second elements. For the given relation $\{(4,4),(-6,5),(7,10)\}$, the domain is $\{4,-6,7\}$ and the range is $\{4,5,10\}$.

Question 5

Solve the problem.
-Find $f(2)$ when $f(x)=-x^{2}-4 x-3$.
A) -7
B) -1
C) -15
D) 9

Accepted Answer

To find $f(2)$, substitute $x = 2$ into the given function: $f(2) = -(2)^2 - 4(2) - 3 = -4 - 8 - 3 = -15$.

Question 6

Solve the problem.
-Find $f(a)$ when $f(x)=-x^{2}-4 x-6$.
A) $2 a$
B) $a^{2} - 4a - 6$
C) $-a^{2} - 4a$
D) $-a^{2} - 4a - 6$

Accepted Answer

To find $f(a)$, substitute $x$ with $a$ in the given function $f(x) = -x^2 - 4x - 6$, resulting in $f(a) = -a^2 - 4a - 6$.

Question 7

Graph the linear function. What is its domain and range?
-$f(x)=\frac{5}{4}x - 2$

A) Domain: $(-\infty, \infty)$; range: $(-\infty, \infty)$

B) Domain: $(-\infty, \infty)$; range: $(-\infty, \infty)$

C) Domain: $(-\infty, \infty)$; range: $(-\infty, \infty)$

D) Domain: $(-\infty, \infty)$; range: $(-\infty, \infty)$

Accepted Answer

The answer of Graph the linear function. What is its...

Quiz 3: Linear Equations, Graphs, and Functions

Which one of the following is the graph of a function?

Which one of the following does not define $y$ as a function of $x$ ?

Give the domain and range of the relation shown in the following. - $\{(4,4) ,(-6,5) ,(7,10) \}$

Solve the problem. -Find $f(2)$ when $f(x) =-x^{2}-4 x-3$ .

Solve the problem. -Find $f(a)$ when $f(x) =-x^{2}-4 x-6$ .

Quiz 3: Linear Equations, Graphs, and Functions

Which one of the following is the graph of a function?

Which one of the following does not define yyy as a function of xxx ?

Give the domain and range of the relation shown in the following. -

Give the domain and range of the relation shown in the following. - {(4,4) ,(−6,5) ,(7,10) }\{(4,4) ,(-6,5) ,(7,10) \}{(4,4) ,(−6,5) ,(7,10) }

Solve the problem. -Find f(2) f(2) f(2) when f(x) =−x2−4x−3f(x) =-x^{2}-4 x-3f(x) =−x2−4x−3 .

Solve the problem. -Find f(a) f(a) f(a) when f(x) =−x2−4x−6f(x) =-x^{2}-4 x-6f(x) =−x2−4x−6 .

Graph the linear function. What is its domain and range? - f(x) =54x−2f(x) =\frac{5}{4}x - 2f(x) =45​x−2

Which one of the following does not define $y$ as a function of $x$ ?

Give the domain and range of the relation shown in the following. - $\{(4,4) ,(-6,5) ,(7,10) \}$

Solve the problem. -Find $f(2)$ when $f(x) =-x^{2}-4 x-3$ .

Solve the problem. -Find $f(a)$ when $f(x) =-x^{2}-4 x-6$ .