Solving Problems Linear

Write an expression for the following. Jerry has $20 and makes $7 per hour.

• y = 7x + 20

• y = 7 + 20x

• y = 20 + 7

• y = 20x + 7x

A man is climbing down from 100 feet high descending 30 feet per minute.

• y = 100 - 30x

• y = 100 + 30x

• y = 100x + 30

• y = 100x - 30

An internet company charges a $100 set up fee, and then they charge $35 a month after that.  What is the y-intercept?

• $100

• $35

• $135

• $65

An internet company charges a $100 set up fee, and then they charge $35 a month after that.  What is the rate of change?

• $100

• $35

• $135

• $65

Find the slope

• 3

• -3

• 20

• Not a constant slope/Non-Linear

What is the y-intercept?

• 1/2

• 2

• 7

• 3

• 17, 3.5

• 18, 4.25

• 5, 3

• 18, 4.25

What does the y intercept mean on this graph?

• It took the hiker 18 minutes to reach the bottom.

• It took the hiker 360 minutes to reach the bottom.

• The hiker started out at a height of 360 feet.

• The hiker started out at a height of 18 feet.

What is the meaning of rate of change in the context of the problem?

• The distance to New York City  increases by 55 miles per hour.

• New York City is 55 miles away at the start of the trip.

• The distance to New York City decreases by 55 miles per hour.

• It takes 55 minutes to get to New York City.

What is the meaning of the slope in the context of the problem?

• Sharon's babysitting income increases by $20 per hour.

• Sharon's babysitting income decreases by $4 per hour.

• Sharon's babysitting income increases by $4 per hour.

• Sharon's babysitting income increases by $5 per hour.