So, the value of 'x' when (y = 60) is -30 and this can be determined by forming the equation of the line that passes through the point (15,-30).
Given :
(y = -30) when (x = 15)
The following steps can be used in order to determine the value of x when (y = 60):
Step 1 - Determine the equation of a line that passes through the point (15,-30).
y = -2x
Step 2 - Now substitute the value of (y = 60) in the above equation.
60 = -2x
Step 3 - Simplify the above equation in order to determine the value of 'x'.
x = -30
For more information, refer to the link given below:
https://brainly.com/question/21835898
