The equation y= -3.5x^2 - 0.5x + 65 models the height of a ball in inches for each bounce
what is the best approximate for the height of the ball after the 3rd bounce?
7 in.
14 in.
32 in.
50 in.

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Step-by-step explanation:

The given equation is

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This equation models the height of a ball after each bounce.

For the third bounce, we plug in

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Simplify

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what is the answer?

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form