Square Root Functions

Question 1

Which are cubic functions? Check all that apply.f(x) = –4 – 2x + 5x3f(x) = –3x – 1f(x) = –x2 + 5x – x3f(x) = x2 – 6x3 + 2x4 + 1f(x) = 2x3 + 3x2 – x – 3f(x) = 3x2 – 1 – 8x

Revolt · Accepted Answer

A: f(x) = –4 – 2x + 5x3; C: f(x) = –x2 + 5x – x3; E: f(x) = 2x3 + 3x2 – x – 3

Question 2

Describe the graph of the function. The domain of the function is .

Revolt · Accepted Answer

A: all real numbers

Question 3

Which function represents a translation of the parent cubic function 8 units to the left?

Revolt · Accepted Answer

C: h(x) = (x + 8)3

Question 4

Which graph represents the function h(x) = –(x + 6)3 – 3?

Revolt · Accepted Answer

B:

Question 5

Graph the function f(x) = x3 – 5x2 + 6x using the graphing calculator. What are the solutions to the related equation? Check all that apply.–3–2–10123

Revolt · Accepted Answer

D: 0; F: 2; G: 3

Question 6

The range of the function is .

Revolt · Accepted Answer

A: all real numbers

Question 7

The x-intercept of the function is .

Revolt · Accepted Answer

C: positive

Question 8

The y-intercept of the function is .

Revolt · Accepted Answer

B: (0, 4)

Question 9

As x approaches positive infinity, y approaches .

Revolt · Accepted Answer

C: negative infinity

Square Root Functions Answers

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