What is the slope of a line parallel to 4x+y=−1?
1 Answer
Jul 23, 2014
I would start by putting this into slope-intercept form, which is:
y= mx+b
Where m is the slope and b is the y intercept. So, if we rearrange the equation into this form, we get:
4x+y=−1
y=−4x−1
This means that the slope is -4 and this line intercepts y at -1.
For a line to be parrallel, it must have the same slope and a different y-intercept, so any line with a different "b" would fit this description, such as:
y=−4x−3
Here's a graph of these two lines. As you can see, they are parrallel because they'll never intersect:
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