find rule for linear function f(5)=-7 and f(-5)=10
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Originally Posted by sluggerbroth find rule for linear function f(5)=-7 and f(-5)=10 Since it's linear it's of the form $\displaystyle \displaystyle \begin{align*} f(x) = m\,x + c \end{align*}$. You can substitute the two given points to get two equations in two unknowns to solve simultaneously
Originally Posted by sluggerbroth find rule for linear function f(5)=-7 and f(-5)=10 $\displaystyle m = \frac{f(5) - f(-5)}{5 - (-5)}$ sub in the value for m in the point-slope form of a linear equation ... $\displaystyle y - (-7) = m(x - 5)$
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