sydneypicchi sydneypicchi

18-04-2020
Mathematics

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Nina knows that the average of the x-intercepts represents the line of symmetry for a quadratic function through the x-axis.
Which equation represents the average of the x-intercepts for f(x) = 4x2 - 24x + 20?

Respuesta :

rainestormee rainestormee

18-04-2020

Answer:

x = 3

Step-by-step explanation:

[tex]f(x)=4x^2-24x+20\\f(x)=4(x^2-6x+5)\\f(x)=4((x-5)(x-1))\\[/tex]

x-intercepts are 5 and 1

so average of 5 + 1 is 3.

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