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5. Find the slope of the line that goes through (-1, 3) and (3, 7)
6. Find the equation of the line that goes through the point (4, 3)
with a slope of 3/2.
7. Suppose that you open a bank account and after 3 months you
have $200 in the account, and after 7 months you have $400. Let x
denote the number of months and y denote the amount of money
you have in the bank. Find a linear equation which will give you
these amounts of money at these times. Use that equation to predict
how much money you would have in the bank after 12 months if the
balance continued to grow linearly at this rate.
