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Math 7H Unit 2 - Word Problems (Slope-Intercept Form)

Last updated over 5 years ago

6 questions

1

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1

Question 3

3.

Howard decided to start jogging every day at the track. He completes the following chart for the first month (4 weeks) that he jogs every day. Use the table to write an equation to represent the number of laps/Howard runs if t is the time in weeks since he began jogging.

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Question 1

1.

A car starts 40 meters away from home and every minute the car travels an additional 1000 meters. Which of the following equations can represent this word problem?

y=40x+100 

y=-1000x+40 

y=-40x+1000

y=1000x+40

Question 2

2.

Suppose you receive $100 for a graduation present, and you deposit it in a savings account. Then each week thereafter, you add $5 to the account but no interest is earned. The amount in the account is a function of the number of weeks that have passed. Create an equation that represents that situation.

y=100x+5

y=-5x+100

y=-100x+5

y=5x+100

Question 4

4.

You are looking at three different ads and trying to decide which tv service to buy. Please organize the three ads into the categories 1st best deal, 2nd best deal, and 3rd best deal. Assume all three companies will give you the same quality.

Directv:
Directv has an installation fee of 125 dollars and every month they will charge you 60 dollars for the basic dish package.
Dish:
Dish has no installation feee and every month they will charge 40 dollars for the basic dish package.
Comcast:
Comcast has an installation fee of 150 dollars and every month they will charge 80 dollars for the basic cable package.

1st Best Deal
2nd Best Deal
3rd Best Deal

Question 5

5.

Company A has a flat fee of 100 dollars and then will charge 40 dollars per hour for work. Company B shows their cost has C=20h+140, where C is the total cost and h is the amount of hours worked. Which of the follow statements is true? (Select all that Apply)

The two companies are charge the same amount because both can be written in Y=mx+b form. 

Company B will always have a better deal because they have a lower rate of change. 

Company A has a lower starting point than Company B, but has a higher rate of change than Company B. 

Company A will always have a better deal because they have a lower starting point. 

Company A can write their cost has C=40h+100. 

Question 6

6.

For babysitting, Nicole charges a flat fee of $3, plus $5 per hour. Write an equation for the cost, C, after h hours of babysitting. How much money will she make if she baby-sits 5 hours?