Evaluation Function

• 4.1 - Relations and Functions

  • Relation vs Function

  • Evaluate Function Notation

​Section 1

Multiple Choice

• Function
• Not a Function

Multiple Choice

• Function
• Not a Function

Multiple Choice

Which relation is NOT a function?

• {(1,-5), (3,1), (-5,4), (4,-2)}
• {(2,7), (3,7), (4,7), (5,8)}
• {(1,-5), (-1,6), (1,5), (6,-3)}
• {(3,-2), (5,-6), (7,7), (8,8)}

Multiple Choice

Find $$f\left(-2\right)$$

• f(x) = 9

• f(x) = -9

• f(x) = -15

• f(x) = 21

Multiple Choice

Find $$f\left(-3\right)$$

• -2

• 10

• 8

• no solution

• 4.2 - Linear Functions

  • Graph Linear Functions in Slope-Intercept Form

  • Domain and Range of a Function

​Section 2

Graphing

Graph the function:

f(x) = 2/3x + 1

Graphing

Graph the function:

f(x) = -3x + 3

Dropdown

The domain of the graph is​

Select answer

and the range is ​

Select answer

.

• 4.3 - Characteristics of Functions

  • Increasing vs Decreasing Function

  • Maximum and Minimum

  • Zero of a Function

Section 3

Multiple Select

Which functions are increasing?

• f(x)=-3x+2

• f(x)=3x+12

• f(x)=13x+222

• f(x)=0.3x+1

• f(x)=-9x

Multiple Select

Which functions are decreasing?

• f(x)=-1.3x+2

• f(x)=3x+12

• f(x)=13x+222

• f(x)=0.3x+1

• f(x)=-9x

Multiple Select

Imagine we are looking at the lines, below, on the interval -1 ≤ x ≤ 2.

Which functions would have a MAXIMUM at x=-1?

(HINT: Which lines are increasing and which are decreasing?)

• f(x)=-3x+2

• f(x)=3x+12

• f(x)=13x+2

• f(x)=1/3x+1

Multiple Select

Imagine we are looking at the lines, below, on the interval -1 ≤ x ≤ 2.

Which functions would have a MINIMUM at x=-1?

(HINT: Which lines are increasing and which are decreasing?)

• f(x)=-3x+2

• f(x)=2/3x+1

• f(x)=x+2

• f(x)=1/3x+1

Multiple Choice

For the function $$f\left(x\right)=2x+10$$ , what is the maximum value on the interval from $$x=-1$$ to $$x=4$$ ?

• 16
• 20
• 12
• 18

Multiple Choice

For the function $$f\left(x\right)=-5x+1$$ , what is the maximum value on the interval from $$x=-1$$ to $$x=4$$ ?

• 7
• 10
• 6
• 5

Multiple Choice

Which is true about the function $$f\left(x\right)=-2x-8$$ ?

• The function is decreasing and has a zero at -4.

• The function is increasing and has a zero at -4.

• The function is decreasing and has a zero at 4.

• The function is increasing and has a zero at 4.

• 4.4 - Model with Linear Functions

  • Write Linear Functions in Slope-Intercept Form

​Slide 2

Dropdown

When you write a function in slope-intercept form, the starting amount is the​

Select answer

, and the rate of change is the​

Select answer

.

Dropdown

A 39cm candle melts at a rate of 3cm per hour.

Write the function in slope-intercept form.

f(x) = ​

Select answer

x + ​

Select answer

Math Response

On a winter night, the temperature starts at 14 degrees and drops at a rate of 2 degrees per hour during a storm.

What is the temperature after 4 hours?

Type answer here

Correct Answer: 6

Deg^°

Rad