Evaluate the expression 2x-5 when x=3

1

Step-by-step explanation:

as x=3

we substitute x with 3

so 2(3)-5

and 2(3) Is 6

so we do 6-5 which is 1

a. - f(x) = 1/3x + 8     b. - f(x) = 1/3x +25

Step-by-step explanation:

-8 is y-intercept, to reflect across x-axis, means to reverse the y's number. to "translate up" means to move up 17 units, simply adding 17 to 8 gives you 25.