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3 years ago

How would you solve for f(-x) ? f(x) = x^2 +3x + 9

Mathematics

1 answer:

spin [16.1K]3 years ago

7 0

9514 1404 393

Answer:

f(-x) = x^2 -3x +9

Step-by-step explanation:

Use -x as the argument of the function.

f(-x) = (-x)^2 +3(-x) +9

f(-x) = x^2 -3x +9 . . . . . . . . simpify

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Write the standard form of the line that passes through the given points. Include your work in your final answer. Type your answ

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Answer: $5x-3y=44$

Step-by-step explanation:

We know that , the equation of a line that passes through (a,b) and (c,d) is given by :_

$(y-b)=\dfrac{d-b}{c-a}(x-a)$

Standard form of equation of line = $Ax+By=C$

Given points = (7, -3) and (4, -8)

Then, the equation of a line that passes through the points . (7, -3) and (4, -8) is given by -

$(y-(-3))=\dfrac{-8-(-3)}{4-7}(x-7)$

$(y+3)=\dfrac{-8+3}{-3}(x-7)$ [∵ (-)(-)=(+)]

$(y+3)=\dfrac{-5}{-3}(x-7)$

$(y+3)=\dfrac{5}{3}(x-7)$

$3(y+3)=5(x-7)$

$3y+9=5x-35$

$9+35=5x-3y$

$44=5x-3y$

Or $5x-3y=44$

Hence, the required equation :- $5x-3y=44$

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