Unit 1 - Alg 2 Test Review

Find the x-intercept(s) of

 $f\left(x\right)=x^2+6x-16$  

• (-8,0), (2,0)

• (0,8), (0,2)

• (8,0), (-2,0)

• (-16,0)

• There are no x-intercepts

 Find the y-intercept(s) of

 $f\left(x\right)=x^2+6x-16$  

• (-8,0), (2,0)

• (0,8), (0,2)

• (0,-16)

• (-16,0)

• There are no y-intercepts

Identify the RANGE for the function graphed above.

•  $-3\le y\le2$  

•  $-3\le y<2$  

•  $1<y\le3$  

•  $-4\le y<1$  

•  $-4\le y\le3$  

Identify the DOMAIN for the function graphed above.

•  $-3\le x\le2$  

•  $-3\le x<2$  

•  $1<x\le3$  

•  $-4\le x<1$  

•  $-4\le x\le3$  

Find the equation of the line containing the points (8,12) and (6,20).

• $y=-4x+44$

• $y=-\frac{1}{4}x+14$

• $y=\frac{1}{4}x+10$

• $y=\frac{16}{7}x-\frac{140}{7}$

• $y=4x-20$

If  $f\left(x\right)=\sqrt{3x-2}$  what value(s) of  $x$   will make  $f\left(x\right)=5$  ?

 $.$  

•  $\frac{1}{9}$  

•  $\frac{7}{3}$  

•  $\sqrt{13}$  

• 1

• 9

 $2\left(x+5\right)-3\left(2x+4\right)=9x+6$  

Solve for x:

•  $\frac{-8}{13}$  

•  $\frac{8}{13}$  

•  $\frac{16}{13}$  

•  $\frac{-16}{13}$  

• 1

 $4x-5y=17$  

 $x+2y=1$  

Solve for the y-coordinate of the system of equations.

• -5.8

• 5.8

• -1

• 1

• 3

 $y=x^2-7x+1$  

 $y=-5x+9$  

Find the x-value(s) of the point(s) of intersection...hint use your graphing calculator!

• x = 1 and x = 9

• x = 2 and x = -4

• x = -2 and x =  4

• x = -2 and x = 6

• x = 2 and x = -6

 $f\left(x\right)=3x^2-5,\ find\ f\left(-2\right)$  

• -11

• -17

• 12

• 7

• -12