Question

A charm bracelet costs $65, plus $25 for each charm. The equation -25x+y=65 represents the cost y (in dollars) of the bracelet, where x is the number of charms.

a. Graph the equation.
b. How much does a bracelet with three charms cost?

Answer 1

a. see attached

b. $140

Explanation:

a.

The graph starts at y=65 when x=0 and increases by 25 for each increase of 1 in x. The attachment shows a graph of the equation.

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b.

Use x=3 in the equation.

-25x +y = 65

y = 65 +25x = 65 +25(3) = 140

A bracelet with 3 charms costs $140.