Finding intercepts of a quadratic (vertex form)

What is the vertex of this quadratic? y = -2(x-5)² + 1

• (-5, 1)

• (5, -1)

• (5, 1)

• (-5, -1)

How many y-intercepts does every quadratic have?

• 0

• 1

• Infinitely many

• Every quadratic is different

Tags

CCSS.HSA.REI.D.10

How many x-intercepts can a quadratic have? Choose ALL THAT APPLY.

• 0

• 1

• 2

• Cannot determine

Identify the x-intercept(s). Choose ALL THAT APPLY.

• (-1,0)

• (1,4)

• -1, -3

• (3,0)

Find the y-intercept: y = (x + 9)² - 1

• (0, 81)

• (0, 80)

• (0, -10)

• (0, 10)

Tags

CCSS.HSA.REI.B.4

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

Find the x-intercept(s) of the quadratic

y = (x + 4)² - 16

Choose ALL THAT APPLY

• (12 ,0)

• (1 ,0)

• (0,0)

• (-8 ,0)

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Find the x-interecept(s) of the quadratic

y = (x + 3)² - 7

Choose ALL THAT APPLY.

• (4, 0)

• (-5.6, 0)

• (-0.4, 0)

• (2.6, 0)

Find the y-intercept: y = 3(x + 1)² - 27

• (0, -27)

• (-1, -27)

• (0, 8)

• (0, -24)

If you were trying to solve for x, what would be your first step?

0 = 4(x + 1)²

• Distribute 4

• Divide by 4 on both sides

• Square root both sides

• Subtract 4 from both sides

Find the x-intercept(s) of the quadratic

y = 4(x + 3)² - 4

Choose ALL THAT APPLY

• (-4, 0)

• (1, 0)

• (-2, 0)

• (2, 0)