Question

REVIEW 1) Ted currently weighs 220 pounds and plans to lose 3 pounds a week through diet andexercise. Write an equation that will predict Tod's weight, y, after x weeks.

Answer 1

Ted currently weighs 220 pounds and plans to lose 3 pounds a week through diet and

exercise.

Let y represents Ted's weight and x represents the number of weeks

Then we can write the following equation to model the above scenario.

`y=220-3x`

The above equation will predict Ted's weight, y, after x weeks.

Note that we are subtracting 3x from 220 since

For example:

What would be Ted's weight after 6 weeks?

Substitute x = 6 into the equation

`\begin{gathered} y=220-3x \\ y=220-3(6) \\ y=220-18 \\ y=202\: \text{pounds} \end{gathered}`

This means after 6 weeks, Ted's weight would be 202 pounds.