quadratic review

Find the zeros of this quadratic.

• b=4/5, b=3
• b=4, b=-3
• b=1/5, b=3
• b=4/5, b=-3

Which of the following equations matches standard form of a quadratic?

• ax + by = c
• y = a(x - h)² + k
• y = ax² + bx + c
• y = mx + b

What are the factors AND solutions of x² + 2x – 3 = 0

• (x - 2)(x + 1); x=2, x=-1
• (x + 1)(x - 3); x=-1, x=3
• (x + 2)(x - 1); x=-2, x=1
• (x - 1)(x + 3); x=1, x=-3

Solve by factoring: 2x² - 5x - 12 = 0

• x = -4 and x = -6
• x = 4 and x = -3/2
• x = 4 and x = 6
• x = -4 and x = 3/2

To find an x-intercept, you plug in 0 for...

• x

• y

• a

• h

What is the axis of symmetry for g(x) = x² - 8x + 7

• x = -1

• x = -3

• x = 4

• x = 7

What is the axis of symmetry for x² - 14x + 48

• x = -8

• x = -7

• x = -6

• x = 6

• x = 7

Solve:
x² - 49 = 0

• x = -7, x = 7
• x = -7
• x = 7
• x = -7, x = 1

Solve.

(2x - 4)² = 16

• x = 4

• x = 10

• x = -2

• x = 0, 4

What is the formula above primarily used for?

• Finding the axis of symmetry from standard form

• Finding the vertex from standard form

• Finding the vertex from vertex form

• Finding the y intercept from standard form