E = 3(6^2)
E = 3(36)
And your answer is E = 108 :)
Answer:
Step-by-step explanation:
The slope of a line perpendicular to another line is the opposite reciprocal of the slope of the other line, meaning if the slope of the other line is
, then the slope of the line perpendicular is
.
Knowing this, we can start to construct the equation for the line:


To solve for
, we plug in the coordinates of the point that we know the line runs through,
:




Therefore, the slope of the line that is perpendicular ot the line provided in the equation is the following:

Substitute the x-value into the expression and solve it.
-x^{2} - 4x Substitute all the x variables for 3
-3^{2} - 4(3) Use PEMDAS and start with the exponent (-3^{2} = -3 x -3 = 9)
9 - 4(3) Multiply
9 - 12 Subtract
-3