SOLUTION: What is the process to write the Quadratic equation that goes through the points (0,12),(4,0) and(-3,0)

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Question 84333: What is the process to write the Quadratic equation that goes through the points (0,12),(4,0) and(-3,0)
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
write the Quadratic equation that goes through the points (0,12),(4,0) and(-3,0)
A factorable quadratic equation has this form:
y=a%28x-b%29%28x-c%29
-b and -c equal the x intercepts
y=a%28x-4%29%28x%2B3%29*
let x be 0 and y be 12 and solve for a
12=a%280-4%29%280%2B3%29
12=a%28-4%29%283%29
12=-12a
12%2F-12=-12a%2F-12
-1=a
Let a=-1 in *
y=-%28x-4%29%28x%2B3%29
Happy Calculating!!!!