SOLUTION: If f(x) is a linear function such that f(-4)=1 and f(5)=7, what is the value of f(1250)?

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Question 1134205: If f(x) is a linear function such that f(-4)=1 and f(5)=7, what is the value of f(1250)?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
two points on the line (-4,1) and (5,7);
f%28x%29-1=%28%287-1%29%2F%285%2B4%29%29%28x%2B4%29
f%28x%29=%282%2F3%29%28x%2B4%29%2B1
f%28x%29=%282%2F3%29x%2B8%2F3%2B3%2F3
f%28x%29=%282%2F3%29x%2B11%2F3


The questions asks for f when x is 1250. You can do that!