Quadratics Overview

In vertex form you can see the ______ of the graph easily.

• vertex

• y-intercept

• x-intercepts

What are the x-intercepts of 
f(x)=(x - 10)(x + 10)

• (0, -100)

• (10 , 0) and (-10 , 0)

• (0, -10) and (0, 10)

• 0

What is the y-intercept of
f(x)=(x - 10)(x + 10)

• (0, -100)

• (10 , 0) and (-10 , 0)

• (0, -10) and (0, 10)

• 0

Find the vertex   y = (x - 5)(x - 1)

• (5, 1)

• (-5, - 1)

• (3, -4)

• (-3, 32)

Solve: (4x+5)(x+1) = 0

• x = -5, 1

• x = -4/5, -1

• x = -5/4, -1

• x = -5, -1

(click on the picture to make the question larger if necessary!)

• A

• B

• C

• D

Mathematical Equivalence

ON

Match the equation to its description.

• Right 2 and up 2

• Left 2 and up 2

• Right 2 and down 2

• Left 2 and down 2

Which function matches graph  ii? (Note you have 2 mins to answer. Take your time and get it right)

• y = (x+4)²-2

• y=(x-4)²+2

• y = (x+4)²+2

• y = (x-2)²+4

• 11

• 15

• 17

• 21