Question

Y = 3x + 4, what is y when x is 1, 2, and 3?

Answer 1

If x=1, y=7

If x=2, y=10

If x=3, y=13

Explanation:

For every equation substitute x in y = 3x + 4, with the value you want.

For example the first one says when x=1, so simply substitute x with 1 in y = 3x + 4.

So it'll look something like this:

y = 3(1) + 4.

Simply solve the equation from there, and you'll get y=7, and we know that x is already equal to 1.

So if x=1, then y=7

Answer 2

When x is 1, y=7

When x is 2, y=10

When x is 3, y= 13

Step-by-step explanation: Plug in each number for x and solve