Algebra2 2021 MIDTERM EXAMINATION

What is the axis of symmetry of the equation
 $f\left(x\right)=2x^2+8x+6$  

•  $x=-2$  

•  $x=2$  

•  $x=-4$  

•  $x=4$  

What is the vertex of the equation
 $f\left(x\right)=2x^2+8x+6$  

•  $\left(-2,-2\right)$  

•  $\left(-2,\ 6\right)$  

•  $\left(-2,\ -10\right)$  

•  $\left(-2,\ 0\right)$  

What is the axis of symmetry of the equation
 $f\left(x\right)=-x^2+2x-5$  

•  $x=1$  

•  $x=-1$  

•  $x=-2$  

•  $x=2$  

What is the vertex of the equation
 $f\left(x\right)=-x^2+2x-5$  

•  $\left(1,\ -4\right)$  

•  $\left(-1,\ -8\right)$  

•  $\left(1,\ -6\right)$  

•  $\left(-1\ -4\right)$  

What is the y-intercept of the equation
 $f\left(x\right)=-x^2+2x-5$  

•  $\left(0,-5\right)$  

•  $\left(0,\ -1\right)$  

•  $\left(-5,\ 0\right)$  

•  $\left(0,\ 5\right)$  

Tags

CCSS.HSF-IF.C.7A

Does the graph of  $f\left(x\right)=-x^2+2x-5$  
open up or down?

• opens up

• opens down

Tags

CCSS.HSF-IF.C.7A

What do you call the highest or lowest point in a parabola?

• intercepts

• range

• slope

• vertex

Solve by completing the square.
x² +12x = 5

• X = 6 + √41 or  6 − √41
• X= 35 or 47
• X = −6 + √41 or  −6 − √41
• X = √35 or √47

Solve by completing the square.
x² +12x = 5

• X = 6 + √41 or  6 − √41
• X= 35 or 47
• X = −6 + √41 or  −6 − √41
• X = √35 or √47

Solve by completing the square.
x² +12x = 5

• X = 6 + √41 or  6 − √41
• X= 35 or 47
• X = −6 + √41 or  −6 − √41
• X = √35 or √47