Quadratic Functions and Equations review (ch. 9 test)

What is the vertex of the parabola?

• (-1,0)

• (0,-3)

• (1,-4)

• (3,0)

Which of the following has a graph that is wider than the graph of y=3x²+2?

• y=3x²+3

• y=0.5x²+1

• y=-4x²-1

• y=4x²+1

What are the coordinates of the vertex of the graph of the function y=-x²+6x-11?

• (3,-2)

• (3,16)

• (-3,-29)

• (-3,-20)

What is the name of the graph of a quadratic equation?

• paramedic

• parabola

• ebola

• parentheses

Identify the 'b' value: y = 16x² -8x -24

• 16
• -8
• 8
• -24

Identify the 'a' value: y = 16x² -8x -24

• 16
• 8
• -8
• -24

True or false:
The solution, root, x-intercept, and zero of a problem are all the same thing

• True
• False, because the solution and root are the same but the x-intercept and zero are different
• False, because the x-intercept and root are the same but the zero and solution are different
• False, they are all different

Tags

CCSS.HSF-IF.C.7A

Use the graph of the function f(x)=-2x²+4x+6 to find the solution(s) of the equation -2x²+4x+6=0.

• x=-1
• x=3
• x=-1 and x=3
• x=1and x=8 

Find the vertex of the quadratic:
y = -2x² + 4x + 3

• (0, 3)
• (-1, 5)
• (1, 5)
• (1, -5)

Does the equation open up or down? 
Y = -3x² +7x - 2

• up
• down

Tags

CCSS.HSF-IF.C.7A