SOLUTION
13
The standard form of linear equation
where,
m=slope
b=intercept
Put the value of slope m = 3 in equation y =mx + b
Now,
i.e,
So,
b = intercept = -5
Therefore,
m = slope = 3
b = intercept = -5
14
According to question,
Total Savings amount = Present amount in savings account + (Amount deposited per month ) * (Number of months)
Therefore,
It will take her 31 months.
15
Subtract 2 from both sides
Subtract 8x from both sides
Divide both sides by 2
Therefore,
16
Therefore,
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