jaylaga47
24.06.2019 •
Mathematics
Find the slope-intercept form of an equation for the line that passes through (-1,2) and is parallel to y=2x-3
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Ответ:
y = 2x+4
Step-by-step explanation:
The slope of the line y = 2x-3 is 2
(y=mx+b where m is the slope)
We want a line that is parallel. Parallel lines have the same slope. So the slope of the new line is 2.
We have the slope =2 and a point (-1,2). We can use point slope form to make an equation
y-y1 = m(x-x1)
y-2 = 2(x--1)
y-2 = 2(x+1)
Distribute the 2
y-2 =2x+2
Add 2 to each side
y-2+2 = 2x+2+2
y = 2x+4
This is in slope intercept form
Ответ:
(0,-4)
Step-by-step explanation:
4x-2y=8
y=-4-3x
4x-2(-4-3x)=8
x=0
y=-4-3x0
y=-4