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Mathematics 19 Online
OpenStudy (anonymous):

Given the functions f(x) = 4x^2 - 1, g(x) = x^2 - 8x + 5, and h(x) = -3x^2 - 12x + 1, rank them from least to greatest based on their axis of symmetry.

OpenStudy (anonymous):

g(x), h(x), f(x) f(x), h(x), g(x) g(x), f(x), h(x) h(x), f(x), g(x)

OpenStudy (greatlife44):

\[\frac{-b }{ 2a }\]

OpenStudy (anonymous):

Can I guess that it is g(x), f(x), h(x)?

jimthompson5910 (jim_thompson5910):

does the hint @greatlife44 gave help? or no?

OpenStudy (anonymous):

I think. But is the one i gave earlier correct?

jimthompson5910 (jim_thompson5910):

what is the axis of symmetry of f,g and h?

OpenStudy (anonymous):

g was 4 f was 0 and h was -2 I think

jimthompson5910 (jim_thompson5910):

very good. You got all 3 correct

jimthompson5910 (jim_thompson5910):

now sort from least to greatest

OpenStudy (anonymous):

h then f then g?

OpenStudy (anonymous):

Ohhhhhh I get it

jimthompson5910 (jim_thompson5910):

yep, that's the correct order

OpenStudy (anonymous):

Thank you so much!

jimthompson5910 (jim_thompson5910):

no problem

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