APEX 3.3.1 Slides 1-3

11/30 - 12/1

Take out a piece of paper to write down notes.

Multiple Choice

What does linear mean?

• a curved line

• vertical (up and down)

• a straight line

Multiple Choice

Is the graph pictured a linear or nonlinear function?

• Linear

• Nonlinear

Multiple Choice

Which graph is linear?

• Graph A
• Graph B
• Graph C
• Graph D

Multiple Choice

Is the graph linear or nonlinear?

• linear

• non-linear

Multiple Choice

Is the function Linear or Nonlinear?

• Linear
• Nonlinear

Multiple Choice

Is the equation linear or nonlinear?

• Linear
• Nonlinear

Multiple Choice

What is the y-intercept in the equation y=2x + 3?

• 2

• 3

• 5

• Cannot be Determined

Multiple Choice

Identify the slope and y intercept in the equation

 $y=-\frac{1}{3}x-1$  

• Slope: 1/3

  y-intercept: 1

• Slope: -1/3
  y-intercept: -1

• Slope: -1/3

  y-intercept: 1

• Slope: 1/3
  y-intercept: 0

Multiple Choice

Given that the slope is 2 and the y intercept is (0, -4) what is the equation of the line?

• y = -4x + 2

• y = 2x - 4

• y = -4

• y = 2x + 4

Multiple Choice

What is the slope of the line?

• -3

• -1

• 1

• 2

Multiple Choice

Find the slope of the line.

• 1/2
• -1/2
• 2/1
• -2/1

Multiple Choice

What is the rate of change for the following graph?

• 80
• 20
• 40
• 160

Multiple Choice

What is the correct equation in 
Slope-Intercept Form?
(y = mx +b)

• y = x + 2
• y = 2x - 1
• y = -x + 2
• y = -2x - 1

Multiple Choice

What is the correct equation in

Slope-Intercept Form?

(y = mx +b)

• $y=3x-3$
  

• $y=3x-1$
  

• $y=-3x-3$

• $y=-\frac{1}{3}x-3$

Multiple Choice

What is the correct equation in

Slope-Intercept Form?

(y = mx +b)

• y = 1/3x - 1

• y = 1/4x -1

• y = 4x +1

• y = -1/4x + 1

Multiple Choice

Which equation matches the situation:

A hole that is already 4 feet deep is dug deeper at a rate of 2 feet per hour.

• $y=4x+2$

• $y=2x+\ 4$

Multiple Choice

Which equation matches the situation:

A plumber charges $40 for each hour he spends on the job, plus a $50 fee for driving to the job. 

•  $y=40x+50$ 

•  $y=50x+\ 40$ 

Multiple Choice

Which equation matches the situation:

A car begins 40 miles from a town and drives 50 miles per hour away from it. 

•  $y=40x+50$ 

•  $y=50x+\ 40$ 

Multiple Choice

Which equation matches the situation:

A cat that initially weighs 5 pounds is gaining 2 pounds per year.

•  $y=5x+2$ 

•  $y=2x+\ 5$ 

Multiple Choice

What is the meaning of the y-intercept?

• Colby started with $100 in his account.

• Colby's initial deposit was $150

• Colby is adding $5 per week

• Colby is adding $100 per week

Multiple Choice

Dominos pizza charges extra for each additional topping. They use the equation to charge customers.

 $y=1.40x+7.99$ 

What is the meaning of the y-intercept?

• The pizza will cost $7.99 without any toppings.

• The pizza will cost $1.40 without any toppings. 

• The cost of the pizza is $7.99 with one topping

• The cost of the pizza doesn't change no matter how many toppings there are.

Multiple Choice

Dominos pizza charges extra for each additional topping. They use the equation to charge customers.

 $y=1.40x+7.99$ 

What is the meaning of the slope?

• Toppings cost $7.99 each

• Toppings cost $1.40 each

• A cheese pizza will cost $1.40

• The pizza delivery driver gets a $7.99 tip

Multiple Choice

 $y=5+1.75x$  

The cost to attend a fair is represented by the equation where x is the number of rides you go on.

What is the meaning of the slope?

• The cost to get into the fair is $5

• The total cost for the day will increase by $1.75 for every ride you go on.

• The cost to get into the fair is $1.75

• The total cost for the day will increase by $5 for every ride you go on. 

Multiple Choice

 $y=5+1.75x$  

The cost to attend a fair is represented by the equation where x is the number of rides you go on.

What is the meaning of the y-intercept?

• The cost per ride is $1.75

• The cost per ride is $5

• The cost to get into the fair is $5

• The cost to get into the fair is $1.75

Multiple Choice

Find the slope between the points (6, -3) and (6, 9)

Simplify.

• 0

• undefined

• 12