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disa [49]
3 years ago
8

Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the function y = 4x2 – 8x – 3.

Mathematics
2 answers:
Schach [20]3 years ago
5 0
Axis of symmerty from form
ax²+bx+c is -b/2a
the axis of symetry is the x value of the vertex so just put the axis of symetry for x an evaluate


4x²-8x-3
-b/2a=-(-8)/(2*4)=8/8=1

input for x
4(1)²-8(1)-3=4-8-3=-7

(1,-7) is vertex

A is answer
Mumz [18]3 years ago
5 0

Answer:

(1,-7)

Step-by-step explanation:

i dont know how do it i just geussed and got it right

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Answer:

D

Step-by-step explanation:

Exponential equation takes the form  y=a*b^x  where

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The equation given in the problem can be written as  y=-4.8*4^x, so it is <em>an exponential equation, </em>  where a = -4.8 and b = 4.

Thus we can say that the initial value = -4.8 and the base is 4

The correct answer is  D

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Step-by-step explanation:

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  • See below

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