A health club charges a $50 initial fee , plus $2 for each visit . Marsha has spent a total of $144 at the health club this year . Write and solve a equation to find how many visits she has made .
Use these variables to make an equation- y is the total amount. $50 is where you start charging(y intercept, variable b). x is how many visits Marsha made. The equation can be in slope-intercept form (y=mx+b)- $144=$2x+50 Solve for x using inverse operations.
Subtract 50 from both sides- 144-50=2x+50-50 94=2x