Tooter wrote:I think this is looking for something like: f(x)= -----

Yes, they've told you to find a function, and your function will start with "(function name) equals".

Tooter wrote:"The director of a summer camp estimates that 100 students will enroll if the tuition is $250. For each $20 increase in tuition, six fewer students will enroll.

a. Determine a linear function that will predict the number of students who will enroll at a given tuition.

They've given you one point; namely, (x, y) = (250, 100).

They've given you information sufficient to find the "next" point; namely, (270, 94).

They've told you to find the

linear model for these two points.

Find the

slope of the line through these points. Then pick one of the points (it doesn't matter which) and plug it, along with the slope you just found, into

point-slope formula for a straight line.

Solve this equation for "y=". Rename "y" as

"f(x)", to restate the formula as a function.

Tooter wrote:b. use this model to predict erollment when the tuition is $300.

Plug "300" in for "x", and

evaluate to find the required value.

If you get stuck, please reply showing how far you have gotten in following the step-by-step instructions.

Thank you!