Quadratic Functions

Solve by taking square roots:
3 + 9r² = 12

• r = 0
• no solution
• r = 3, r = -3
• r = 1, r = -1

x² -4 = 77

• 9
• -9
• No Real Solutions
• 9, -9

How many solutions does this graph have?

• one real solution

• two real solutions

• no real solutions

• cannot be determined

How many roots does this parabola have?

• 3 real roots

• 2 real roots

• 0 real roots

• 1 real root

Find the root(s) of this parabola?

• x = −6, x = 0

• x = −6

• x = −3

• x = −3, y = −9

Find the root(s) of this parabola?

• x = −6, x = 0

• x = −6

• x = −3

• x = −3, y = −9

Find the root(s) of this parabola?

• x = 1, x = 5

• (1, 5)

• x = 3

• (3, −4)

Find the root(s) of this parabola?

• y = 0

• x = 1, x = 7

• x = 4

• x = 4, y = −9

What are the x- intercepts?

• x= 0 and x= -4

• x= 0 and x= 4

• y= 0

• x= 2

Which of the following quadratic functions has zeros at x=-1 and x=3?

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