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sleet_krkn [62]
2 years ago
7

What is the y-intercept, axis of symmetry and vertex of the following function.

Mathematics
2 answers:
Irina18 [472]2 years ago
6 0
Y intercept = 5
Axis of sym = -1
Vertex = (-1, -2)
tamaranim1 [39]2 years ago
5 0
To find the y intercept you must substitute 0 into x.

F(x) = (-3x0) - (6x0) - 5
F(x) = -5

To find the axis of symmetry and vertex we use the formula -b/2a to find the x coordinate

x = 6/(-3x2)
x = 6/-6
x = -1

Now we need to find the y coordinate so we sub -1 into x.

F(x) = (-3x-1) - (6x-1) - 5
F(x) = 3 + 6 - 5
F(x) = 4

The axis of symmetry and vertex are (-1,4) and the y coordinate is -5. Hope this helps.
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