Question

When the value of x is 4, what is the value of y=3x? What is the value of y when x=4?

a) 0
b) 12
c) 3
d) 9

Answer 1

b

Step-by-step explanation:

given

y = 3x , that is y = 3 × x

substitute x = 4

y = 3 × 4 = 12

Answer 2

By multiplying 3 by 4, the value of y in the equation y=3x is 12 when x is 4.

Step-by-step explanation:

When the value of x is 4, the value of y = 3x can be found by simply multiplying 3 by the value of x. So, y = 3 * 4 = 12. Therefore, the value of y when x = 4 is 12, which corresponds to option b).