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Andre has $157 in his checking account and earns
$120 per week at his part-time job. Assume he has
no expenses currently.
Complete the table to show Andre's balance, y, after x
weeks.
X
0
1
2
3
Check it!
y

Andre has 157 in his checking account and earns 120 per week at his parttime job Assume he has no expenses currently Complete the table to show Andres balance y class=


Answer :

We can take the starting balance of $157 and keep adding $120 to it each week to get:

Week 0 : $157
Week 1 : $277
Week 2 : $397
Week 3 : $517

His balance can be represented by the slope or rate he's getting paid plus his initial balance

Y = 120x + 157

To get the balance after 8 weeks, substitute 8 for x:

Y = 120(8) + 157 = 960 + 157 = $1,117

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