Find the value of the missing coefficient a in the equation y = a(x - 3)(x + 5) if the graph goes through the point (1, -6) Plz help I will mark brainliest

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

y-(a*(x-3)*(x+5))=0

STEP
1
:
Equation at the end of step 1

y - (a • (x - 3) • (x + 5)) = 0
STEP
2
:
Equation at the end of step 2

y - a • (x - 3) • (x + 5) = 0
STEP
3
:
Equation at the end of step 3

y - ax2 - 2ax + 15a = 0
STEP
4
:

Solving a Single Variable Equation:

4.1 Solve y-ax2-2ax+15a = 0

In this type of equations, having more than one variable (unknown), you have to specify for which variable you want the equation solved.

If you divide 0.1 and 0.6 you wii get 0.166666 which rounds to .167 which is answer b