Quadratics from Equation

What is the y-intercept of

f(x) = x² - 8x + 3

• (3, 0)

• (-8, 3)

• (4, -13)

• (0, 3)

What is the y-intercept of f(x) = 2(x-4)(x+2)

• (0, 2)

• (0, -8)

• (0, 4)

• (0, -16)

What is the end behavior for the function: f(x) = -7x² + 2x - 9??

• Positive, opening upward

• Positive, opening downward

• Negative, opening upward

• Negative, opening downward

Determine if the vertex is a maximum or a minimum of the function.

f(x) = 9x² - 12x + 3

• maximum

• minimum

Determine if the vertex is a maximum or a minimum of the function. f(x) = -21(x + 8)(x - 9)

• maximum

• minimum

What is the axis of symmetry of y=2x²-4x+9?

• x = 1

• x = -1

• x = -2

• x = 4

What is the axis of symmetry?
f(x) = x² - 8x + 15.

• x = -4

• x = 4

• y = 4

• y = -4

Determine the axis of symmetry ofy = -6x² -8

• x = -6

• x = 8

• x = -8

• x = 0

What's the y-intercept of y = 3x²- 6x + 4

• (4,0)

• (-4,0)

• (0,-4)

• (0,4)

What is another name for the x-intercepts of a quadratic?

• y-intercept

• Zeros

• x-axis

• They don't have another name