Math 8 - Review 4.5 - 5.2 Writing Linear Equations

2.) The following table represents the number of Freddie’s downloads of music compared to the amount of money remaining in the account.  What is the slope for this table?

Mathematical Equivalence

ON

2.) The following table represents the number of Freddie’s downloads of music compared to the amount of money remaining in the account.  What is the y-intercept?

Mathematical Equivalence

ON

2.) The following table represents the number of Freddie’s downloads of music compared to the amount of money remaining in the account.  What is the equation?

• y = -2x + 100

• y = 100x - 2

3.) Freda and her crew begin a voyage to the island of Fiji with 145lbs of food.  The crew plans to eat a total of 15 pounds of food per day.  The crew plans to have 25lbs of food remaining when they end their voyage.  What is the slope?

Mathematical Equivalence

ON

3.) Freda and her crew begin a voyage to the island of Fiji with 145lbs of food.  The crew plans to eat a total of 15 pounds of food per day.  The crew plans to have 25lbs of food remaining when they end their voyage.  What is the y-intercpt?

Mathematical Equivalence

ON

3.) Freda and her crew begin a voyage to the island of Fiji with 145lbs of food.  The crew plans to eat a total of 15 pounds of food per day.  The crew plans to have 25lbs of food remaining when they end their voyage.  What is the equation?

• y = 145x - 15

• y = -15x + 145

  which can also be written as y = 145 - 15x

• y = 15x - 145

At the Free-rider competitions, Fergie makes $72.80 for every 8 hours of work as she works in her hotdog stand.  How much does she make per hour?

Mathematical Equivalence

ON

Determine if the relationship is proportional or non-proportional.

           A new born baby gains 2 pounds each month

• Non - Proportional

• Proportional

Determine if the relationship is proportional or non-proportional.

           Mary gets a job that pays $8.50 per hour. 

• Non - Proportional

• Proportional

Find the slope btween these points.

(3 , 0 )  and ( 5 , 1)

Mathematical Equivalence

ON