Unit 9 Lesson 4 Checkpoint

What are the zeros?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

What is another word for zeros?

• y-intercepts
• roots
• vertex
• axis of symmetry

How many zeros does this parabola have? 

• 3
• 2
• 0
• 1

Tags

CCSS.HSF-IF.C.7A

What are the x-intercept/s of the function? 

• {x|x = 3}
• {x|x =-3,3}
• (3, 0)
• (-3, 0)&(3, 0)

True or false:
The solutions, roots, x-intercepts, and zeros of a quadratic equation 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

x²−10=19

• x = ±√29

• x = ±2√9

• x = ±29

• x = ±5√19

Which is all the roots of 36?

• 6

• -6

• ±6

• 1, 2, 3, 4, 6, 9, 18, 36

Solve for all values of x and write in simplest:

x² = 20

• ±2√5

• 2√5

• -2√5

• ±√4√5

3x²+12=39

• x = √27
• x = ±3√27
• x = ±3
• x = ±9

(x + 3)² = 36

• x = √36
• x = √39
• x = -9 and x = 3
• x = 9 and x = -3