Functions Quiz 1 Review

If f(x) = -2t+1, find f(-7)

• 25

• 15

• 13

• 12

Find the solution of:

  $-5x-y=-26$ 

  $6x+8y=4$  

• (2, 4)

• (6, 4)

• (6, -4)

• (-6, 2) 

 $f\left(x\right)=\frac{1}{2}x+17$  

Find the x-intercept of the function above.

• 1/2

• 17

• -2/3

• -34

 $f\left(x\right)=-2x^2+5$  , find f (x - 4)

•  $-2x^2-27$  

•  $4x^2-32x+69$  

•  $-2x^2+16x-27$  

•  $-2\left(x-4\right)^2+5$  

Is the graph a function?

• Yes

• No

 $9x+6y=54$  

Find the slope of the function.

• -3/2

• 3/2

• 2/3

• -2/3

 $f\left(x\right)=x^2-3x$  , find f(-8)

• 88

• -40

• -88

• 15

Find the domain of the graph above.

• $\left(-\infty,\infty\right)$

• $\left(-4,\infty\right)$

• $\left[-4,\infty\right)$

• $\left[-2,\infty\right)$

Find the domain of
 $g\left(x\right)=\frac{2}{x+4}$  

•  $\left(-\infty,-4\right]$  

•  $\left(-\infty,0\right]$  

•  $\left[-4,\infty\right)$  

•  $\left(-\infty,-4\right)$  

Is the graph a function?

• Yes

• No