an equation that defines y as a function f of x is given
a.) solve the equation for y in terms of x, and replace y with with the function f(x)
b.)find f(4)

2x+7y=23

Question

an equation that defines y as a function f of x is given 
a.) solve the equation for y in terms of x, and replace y with with the function f(x) 
b.)find f(4)

2x+7y=23

anonymous · Answer

2x+7y   =   23
->        y   =  - 2x/7  + 23/7
=> f ( 4)   =   -2*4/7  + 23/7 = 15/7