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avrihalverson
08.09.2021 •
Mathematics
Write the equation of a line containing the point (4, -1) and having slope 12.
Group of answer choices
y=12x+3.5
y=12x−3
y=12x−1
Solved
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Ответ:
y = 12x - 49
Step-by-step explanation:
Since we are given the slope(m) and a point (x,y), we can use the point-slope equation to solve for the equation of the line.
y - y = m(x - x)
Plug in the given numbers
y - -1 = 12(x - 4)
Minus a negative becomes a positive
y + 1 = 12(x - 4)
y + 1 = 12x - 48
y = 12x - 49
Ответ:
T is 5,2
Step-by-step explanation:
The change in x is from 1 to 7 6 units
The change in y is from 4 to 1 -3 units
A RATIO of 2:1 means the line is divided into three segments (2+1)
We want two of those segments from endpoint D
6 units* 2/3 added to the x value of 1 = x=5
-3 units * 2/3 added to the y value of 4 = y = 2
Hence, T is 5,2.