Consider the line y = x . if the line is dilated by a factor of 2, what is the equation of the resulting line? if the resulting line is translated 3 units up, what is the equation of the resulting line?

Remember, if f(x) is a function, then

1. We can move up or down f(x) adding a constant c to the whole function, that is, f(x)+c is the function f(x) translated c units up if c is positive or c units down if c is negative.

2. We can compress or dilate f(x) multiplying the whole function by a factor c, that is, cf(x) is the function dilated by a factor of c if or cf(x) is he function compress by a factor of c if .

Then, if y=f(x)=x

1. The equation of f(x) dilated by a factor of 2 is

2. The equation of f(x) translated 3 units up is

the answer is a

step-by-step explanation: