Week 4 - Functions and Function Notation

Given the function $f\left(x\right)=x^2+2x$ , evaluate  $f\left(3\right)$ 
 (only type the numerical value as your answer) 

Tags

CCSS.HSF.IF.A.2

Determine the domain of the function using interval notation. Make sure to use the appropriate symbol of brackets and/or parentheses.

• (-4,4)

• [-4,4]

• (0,2)

• [0,2]

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Is this relationship considered a function?

• Yes, it passes the vertical line test.

• Yes, it fails the vertical line test.

• No, it passes the vertical line test.

• No, it fails the vertical line test.

Find the average rate of change of  $f\left(x\right)=x-2\sqrt{x}$  on the interval  $\left[1,9\right]$  .

•  $\frac{1}{2}$  

•  $\frac{1}{4}$  

•  $4$  

•  $2$  

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

What is g(7) if:

• -11

• -2 

• 12

• 17

Tags

CCSS.HSF.IF.A.2

What is the x-intercept shown on the graph?

• (2, 0)
• (-2, 0)
• (0, 3)
• (3, 0)

Calculate the average rate of change from 20 to 40 minutes.

• -2 minutes per gallon

• -20 minutes per gallon

• -2 gallons per minute

• -20 gallons per minute

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Find the distance between ( 1, 3) and (5, 6) 

• 3
• 4
• 5
• 6

Tags

CCSS.HSG.GPE.B.7

What is the RANGE of this graph?

• -7 < x < 5

• -7 ≤ y < 5

• -3 < x < 1

• -3 ≤ y < 1

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5