2 years ago

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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