Question

Using the rule y = 2x + 3, find the value of y when x is 3. A) 0 B) 8 C) 9 D) 12

Answer 1

Hi there.

Y = 2x + 3
Solve for y when x = 3
The first thing we need to do is replace x by the 3 in the equation.
Y = 2(3) + 3
Y = 6 + 3
Y = 9
Thus, your answer is : C