Question

Your piggy bank starts with $20 and then you add $3 to it every day . Use an equation in slope intercept form to model the amount of money in the piggy bank to determine how much there is after 5 days.

Answer 1

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Answer:

y = 3x +20

$35 after 5 days

Explanation:

The "slope" is the amount added each day. The "intercept" is the initial amount in the bank. If y represents that amount and x represents the number of days money is added, then the slope-intercept equation is ...

y = 3x +20

When x=5, the value is ...

y = 3(5) +20 = 15+20

y = 35 . . . . amount of dollars in the bank after 5 days