Graphing Parabolas in Intercept Form

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

• y-intercept
• Zeros
• x-axis
• They don't have another name

Tags

CCSS.HSF-IF.C.7C

What are the zeros (x-intercepts) of the function

y= -4(x - 3)(x+5)?

• -12 and 20

• -5 and 3

• -4 and -5

• -3 and 5

Tags

CCSS.HSF-IF.C.7C

What are the zeros (x-intercepts) of the equation y = x(x + 5)?

• 0, –5

• –5

• 0, 5

• 1, –5

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Find the axis of symmetry for

y = (x - 5)(x - 3)

• x = -4

• x = 4

• y = 4

• y = -4

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

Does the parabola open up or down.

f(x) = - (x + 6)(x - 2).

• up

• down

Tags

CCSS.HSF-IF.C.7A

Does the scale make this parabola wider, the same, or narrower?

f(x) = 3(x-2)(x+4)

• narrower

• wider

• the same

What is the correct quadratic function for this parabola?

• f(x) = (x - 2) (x - 3)
• f(x) = (x + 2) (x - 3)
• f(x) = (x - 2) (x + 3)
• f(x) (x + 2) (x + 3)

Tags

CCSS.HSF-IF.C.8A

CCSS.HSA-SSE.B.3B

Does the parabola have a maximum or minimum?

y = (x + 1)(x - 4)

• maximum

• minimum

Does the parabola have a maximum or minimum?

f(x) = - (x + 6)(x - 2).

• maximum

• minimum

Find the vertex:

f(x) = 3(x-2)(x+4)

• (1, -15)

• (-1, -27)

• (3, 21)

• (2, -24)