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tatuchka [14]
3 years ago
7

A quadratic function (f) is given. f(x)=x^2+4x-5

Mathematics
1 answer:
faust18 [17]3 years ago
3 0

Answer:

steps below

Step-by-step explanation:

a) f(x) = (x+2)² - 9

b) y = (x-h)² + k , (h,k) is vertex      vertex (-2 , -9)

   x intercept: (x+2)² - 9 = 0

                       x+2 = ± 3

                       <u>x = 1 or x = -5</u>

   y intercept:  <u>y = -5</u>

c) attached

d) y ≥ -9         [-9,∞)

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