HW #2 H. CUBIC FUNCTIONS

What could be the equation for this graph?

• y = -2x³ + 1x + 3
• y = (x - 2)(x + 1)(x + 3)
• y = (x + 2)(x - 1)(x - 3)
• y = -2x² + 1x + 3

What are the x-intercepts of the following function?
y = (x - 1)(x +3)(x - 4)

• 1, 3 and 4
• 2, 1, -3, and 4
• -1, 3, and -4
• 1, -3, and 4

Tags

CCSS.HSF-IF.C.7C

What is another way to say "where a function crosses the x-axis"?

• x-intercept
• zero
• root
• all of these.

Tags

CCSS.HSF-IF.C.7C

What are the
zeros of the polynomial
y = (x + 4)(x + 1)(x - 3)?

• -4, -1, 3
• 3, -3, 4, 1
• 4, 1, -3
• 3, -4, -1, 3

Tags

CCSS.HSF-IF.C.7C

Factor and find the zeros of the function

f(x) = -2x³ - 4x² + 6x?

• x = 0, -2, -3, 1

• x = -3, 1

• x = 0, 3, -1

• x = 0, -3, 1

Tags

CCSS.HSF-IF.C.7C

Determine the roots of the polynomial.

f(x) = (x-2)(x+3)²

• 2, 3

• 2, double root -3

• -2, 3

• -2, -3

Tags

CCSS.HSF-IF.C.7C

Factor completely.

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Factor each and find all roots.

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Tags

CCSS.HSF-IF.C.7C

Which equation matches the following graph?

• y=x³

• y=x³+1

• y=x³-1

• y=x³+2

• y=x³-2

Which graph is generated by this equation?

y=-2 x³

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