Quadratic Function and Equations

The x-intercepts of a quadratic equation are known as the _____.

• vertices

• squares

• zeros

• formulas

Tags

CCSS.HSF-IF.C.7A

The equation y = x² + 3x - 18 is graphed.  Based on this graph, what are the roots (x-intercepts) of the equation x² + 3x - 18 = 0?

• -3 and 6

• 0 and -18

• 3 and -6

• 3 and -18

What are the zeros of the quadratic function?
y = x² - 2x - 15

• x = -2
  x = -15

• x = -3
  x = 5

• x = 3
  x = -5

• x = 1
  x = -16

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

What is the axis of symmetry for the following equation?
y=4x²-8x+9

• x=-8

• x=1

• x=-1

• x=2

Find the y-intercept of
f(x) = 2x²-2x + 1

• 2

• -2

• 1

• -1

Tags

CCSS.HSF-IF.C.7A

In the standard form quadratic y = -4x² + 16x - 5, what is the y -intercept?

• -5

• 16

• -4

• 0

Tags

CCSS.HSF-IF.C.7A

Solve for x

x² + 4x - 40 = -8

• -10 & -4

• -4 & 10

• -8 & 4

• 8 & -4

Tags

CCSS.HSA-REI.B.4B

A parabola has a vertex at (-3,2).
Where is the axis of symmetry?

• y = -2

• x = 3

• x = -3

• y = 2

The axis of symmetry line passes through which point?

• y-intercept

• any random point

• vertex

• symmetrical point for the vertex

What steps transform the graph y = x² to y = x² + 8

• shifted up 8 units

• shifted down 8 units

• shifted left 8 units

• shifted right 8 units