7. Find the slope between (3, 1) and (5, 7) without graphing the points. 8. How can you generalize your strategy for #7? How can we find the slope between any points (a, b) and (c, d)? Explain.

I really only need question 8.

Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?