CPM Homework Help : GB8I Problem 9-84

Write an exponential equation to represent the situation and answer the question.

If the cost of a loaf of bread is now $ $2.75$ and is increasing at $5$ % per year, what will it cost $10$ years from now?

Hint:

The independent variable ( $x$ ) is time, and the dependent variable (y) is cost. Remember $y = ab^{x}$ .

Answer:

In $10$ years the bread will cost $ $4.48$ .

More Help:

You have a point $(0, 2.75)$ because time is now and cost is $ $2.75$ . You also have the multiplier because the increase is $1.05$ ( $5$ % increase).