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brenda9495
24.06.2019 •
Mathematics
What is the equation of the line in point-slope form?
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Ответ:
A
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (- 4, - 4) and (x₂, y₂ ) = (4, 0) ← 2 points on the line
m =
=
= ![\frac{1}{2}](/tpl/images/0010/8017/9cdae.png)
Using (a, b) = (- 4, - 4), then
y - (- 4) =
(x - (- 4)), that is
y + 4 =
(x + 4) → A
Ответ: