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Alja [10]
3 years ago
14

What is the value of m in the equation y=x^2+mx-9 with vertex (-1.5,-11.25)

Mathematics
1 answer:
mel-nik [20]3 years ago
5 0

3

Step-by-step explanation:

Step 1:

Let the given equation be

y = x^{2} + mx  - 9

Step 2:

Applying the  given vertices and simplifying  we will get m

-11.25 = (-1.5)² +m(-1.5) -9

-1.5m = -11.25 + 9 - 2.25

         = -4.5

m = (-4.5) / (-1.5)

    = 3

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