Finding Zeros of Linear and Quadratic Functions

What do we call the graph of a quadratic function?

• parabola

• linear

• cubic

• sinusoidal

Tags

CCSS.HSF-IF.C.7A

Which is the vertex of y = x²+ 16x + 71 ?

• V(-8, 7)

• V(-8, 3)

• V(8, 10)

• V(16, -2)

Factor completely: 2x²+22x+60

• (2x+10)(x+6)

• (x+5)(x+6)

• 2(x+1)(x+30)

• 2(x+5)(x+6)

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

• vertices

• squares

• zeros

• formulas

Tags

CCSS.HSF-IF.C.7A

Find the roots/zeros of x² - 9

• -3, 3

• -4, 4

Tags

CCSS.8.EE.A.2

Factor x² + x - 2

• (x + 1)(x - 2)

• (x - 1)(x + 2)

Factor x² - 3x - 10

• (x + 2)(x - 5)

• (x - 2)(x + 5)

Factor x² + 5x -14

• (x + 2)(x - 7)

• (x - 2)(x + 7)

Which is a zero of the graph?

• 0

• -1

• 1.5

• -3

Tags

CCSS.HSF-IF.C.7A

Which is an x-intercept of the function?

• undefined

• 1

• 2

• -1

Tags

CCSS.HSF-IF.C.7A