8 - Interpreting Linear Equations

Choose the best explaination

• Taylor can write 6 words per minute
• Taylor can write 25 words per minute
• Taylor can write 50 words per minute
• Taylor can write 150 words per minute

A fitness club opens with 80 members. Each month the membership increases by 15 members. Which equation represents the relationship between the number of months the club has been opened, x, and the total fitness club membership, y?

• y = 15x

• y = 15x + 80

• y = x + 15

• y = 80x + 15

The money I have is represented by the equation:

y = 95x + 23 where x = number of weeks and y = money remaining.

How much money do I have initially?

• $95

• $95 in debt

• $23

• $23 in debt

In slope intercept form (y=mx+b) what is the "m"?

• The y-intercept
• The x-intercept
• The slope (rate of change)
• A point

In slope intercept form (y=mx+b) what is the "b"?

• The y-intercept
• The x-intercept
• The slope (rate of change)
• A point

1. A plant is 5cm tall and growing at a rate of 3cm a month.

• 5 + 3
• 5x + 3
• 5 + 3x

Bob has $150 in his savings account and saves $40 per month.

• 150 + 40
• 40x + 150
• 150x + 40

Sonia has $40 in her lunch account and pays $2 each day to eat lunch.

• 40 + 2x
• 40 - 2x
• 2 + 40x
• 2 - 40x

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

• 7x + 20
• 7 + 20x
• 20 + 7

Mr. Thompson is on a diet. The equation that represents this scenario is W(m) = 220 – 4m.

W(m) represents the weight, and m represents months. In this equation, the 220 represents the

• (1) The NEW weight

• (2) The original (INITIAL) weight

• (3) The total amount of weight lost

• (4) The amount of weight lost EACH month