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skyeeeeweeesnddj
20.04.2020 •
Mathematics
A line with a slope of -2 passes through the point (4, 7).
What is an equation for this line in point-slope form? ( the brackets are blanks, fill in the blanks)
y - 7 = [ ] (x - [ ])
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Ответ:
y-7= -2 (x-4)
Step-by-step explanation:
We can use the point slope formula, since we have a point, and a slope
m is the slope, y1 is the y coordinate of the point, and x1 is the x coordinate of the point
We know -2 is the slope, 7 is the y coordinate, and 4 is the x coordinate, so we can substitute them in
y-7= -2 (x-4)
Since we don't need to solve, this is the answer. The first bracket is -2, and the second is 4
Ответ:
Point-slope form: y - y₁ = m(x - x₁)
(m is the slope, (x₁, y₁) is the point you are given that's on the line)
You know:
m = -2
(x₁, y₁) = (4, 7) So plug it into the equation
y - y₁ = m(x - x₁)
y - 7 = -2(x - 4)
[so the first bracket is -2, the second bracket is 4]
Ответ:
Sum of internal angles on same side of transversal is 180
(8x-14) +(2x+54) =180
10x +40 =180
10x =140
x=14
option D x=14 is correct