Question

Find an equation for the linear function which has f( 100 ) = 1000 and f( 350 ) = 4000 .

Answer 1

f(x) = a+bx

Answer 2

a+100b =1000 -- (1)

Answer 3

a+350b=4000 --(2)

Answer 4

(2)-(1) ---> 250b = 3000 --> b= 12

Answer 5

so a= 1000 - 100(12) = 1000-1200 = -200

Answer 6

f(x) = -200 +12x

Answer 7

thanks youve been a great help:)