3 problems:write an equation for the function described.find input.
(1)the output of a function is 5 more than 2 times the input. find the input when the output is 17.
(2) the output of a function iz 10 more than 4 times the input. Find the input if the output is -26.
(3) the output of a function is 14 less than 6 times the input.find the input when the output is 22.

Question

anonymous · Answer

1)
$$f(x)=2x+5$$
if 
$$f(x)=17=2x+5$$ then 
$$12=2x$$
$$x=6$$