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Valentin [98]
2 years ago
15

What is f(-3) for the function f(x) = -5x - 7? ​

Mathematics
1 answer:
sergij07 [2.7K]2 years ago
7 0
F(x) = -5(-3) - 7
15 - 7
f(-3) = 8
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Answer:

A.\ y = x^2 - 6x + 13 is the correct answer.

Step-by-step explanation:

We know that vertex equation of a parabola is given as:

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where (h,k) is the vertex of the parabola and

(x,y) are the coordinate of points on parabola.

As per the question statement:

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Putting value of a and h in the equation:

y = 1(x-3)^2+k\\\Rightarrow y = (x-3)^2+k\\\Rightarrow y = x^2-6x+9+k

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Comparing the equation formulated above with the options given we can observe that the equation formulated above is most similar to option A.

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Please refer to the graph attached.

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