3 years ago

Minimum and maximum value of 2n^2+5n-25=0

Mathematics

1 answer:

Alborosie3 years ago

8 0

Equations don't have minimum or maximum, functions do.

Function y=2n^2+5n-25 has minimum -28.125, has no maximum.

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3x+2y=23<br> 1/2x-4=y<br><br> What should I do for this one...? I dont really understand

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Since you have y alone on one side of the equation......

Use substitution and plug in 1/2x-4 for y in the other equation.

$3x+2(1/2x-4)=23\\$

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