Modelling with Linear Functions

Which Graph has a undefined slope?

• Red

• Blue

• Neither

Write the equation of the line.

• y = -1/3x - 2

• y = 1/3x - 2

• y = 3x - 2

• y = -3x - 2

Given that the slope is  2/3 and the y intercept is -3 what is the equation of the line?

• y = 2/3x - 3

• y = 2/3x + 3

• y = -2/3x - 3

• y = -2/3x + 3

What does 'b" represent in
y = mx + b

• y-intercept

• x-intercept

• nothing

• slope

If m=3 and b=6, what is the correct slope intercept equation?

• y=3-6

• y=3x-6

• y=3x+6

• y=6x+3

Which line has a slope of 0?

• Line A

• Line B

• Line C

• Line D

Oliver is hiking a trail that takes him straight up a mountain. He starts his hike at 8 am at the base of the mountain. The distance, d, in miles, that Oliver is from the base of the mountain t hours after starting his hike is shown in the graph.

Between what times is the slope of the graph positive?

• The slope of the graph is positive between x = 0 and x = 3 and also between x = 5 and x = 7

• The slope is positive between x = 3 and x = 5

In order to join an online learning community, there is a $20 startup fee and a $5 monthly fee. Find the slope

• 20

• 5

• 15

• 25

What is the apparent slope of the line shown in the graph?

• 2

• -2

• 1/2

• -1/2

What is the slope of the following table?

• -10

• 10