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Tcecarenko [31]
3 years ago
12

What are the vertex and axis of symmetry of the parabola y=3x^2-24x+38?

Mathematics
1 answer:
taurus [48]3 years ago
6 0

Answer:

see explanation

Step-by-step explanation:

given a parabola in standard form : y = ax² + bx + c : a ≠ 0

Then the x- coordinate of the vertex which is also the axis of symmetry is

x_{vertex} = - \frac{b}{2a}

y = 3x² - 24x + 38 is in standard form

with a = 3, b = - 24 and c = 38, hence

x_{vertex} = - \frac{-24}{6} = 4

Substitute x = 4 into the equation for corresponding y- coordinate

y = 3(4)² - 24(4) + 38 = 48 - 96 + 38 = - 10

vertex = (4, - 10)

equation of axis of symmetry is x = 4



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