Question

Suppose f(x)= 9/7-8 (x-8) + 10/8-7 (x-7) find f(8) and f(7)

Answer 1

Just plug in 8 and 7 respectively for all instances of x in the equation f(x)

Answer 2

how would you do that @austinL

Answer 3

\(\bf f({\color{red}{ x}})=\cfrac{9}{7}-8({\color{red}{ x}}-8)+\cfrac{10}{8}-7({\color{red}{ x}}-7)\\ \quad \\
f({\color{red}{ 8}})=\cfrac{9}{7}-8({\color{red}{ 8}}-8)+\cfrac{10}{8}-7({\color{red}{ 8}}-7)\\ \quad \\ f({\color{red}{ 7}})=\cfrac{9}{7}-8({\color{red}{ 7}}-8)+\cfrac{10}{8}-7({\color{red}{ 7}}-7)\)

Answer 4

Oh then you solve for both and get your answer @jdoe0001

Answer 5

yeap

Answer 6

Thank you!
@jdoe0001

Answer 7

yw