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2 years ago

F (×)=-4×^2-3 g (×)-3×-3 Find f (4)and g(5)

Mathematics

1 answer:

Elena-2011 [213]2 years ago

3 0

F(4)= -64-3=-69 g(5)= -15-3=-18

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Step-by-step explanation:

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2 years ago

Find an equation for the line that passes through the points (5.-5) and (-4,-2)

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$\large\boxed{y=-\dfrac{1}{3}x-\dfrac{10}{3}\to x+3y=-10}$

Step-by-step explanation:

The slope-intercept form of an equation of a line:

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b - y-intercept

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$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (5, -5) and (-4, -2).

Substiute:

$m=\dfrac{-2-(-5)}{-4-5}=\dfrac{-2+5}{-9}=\dfrac{3}{-9}=-\dfrac{1}{3}$

Put the value of the slope and the coordinates of the point (5, -5) to the equation of a line:

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$y=-\dfrac{1}{3}x-\dfrac{10}{3}$

Convert to the standard form (Ax + By = C):

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3 years ago