What are the coordinates of the vertex of the parabola described by the equation below? y = -7(x - 4)2 - 5

2 answers:

7 0

To get the vertex of the parabola we proceed as follows;
y=-7(x-4)^2-5
The above can be written as:
y=-7x^2+56x-117
The values of a,b and c are:
a=-7, b=56 and c=-117
x=-b/(2a)
x=-56/(-7*2)=4
but;
y=-7x^2+56x-117
y=-7(4)^2+56(4)-117
y=-5
Thus;
x=4 and y=-5
The vertex will be at point (4,-5)

lesantik [10]3 years ago

4 0

Answer:

The answer is (4, -5), Hope you have a good day and pass the exam.

Step-by-step explanation:

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