Mathematics
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OpenStudy (anonymous):
.
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OpenStudy (anonymous):
Graph the line y = 3x +1. Plot the point (2,0). Draw a line parallel to the line that passes through that point. Find its equation.
OpenStudy (anonymous):
Already did that. I don't know to find it's equation
OpenStudy (anonymous):
I have to write an equation for the line that passes through 2,0
OpenStudy (anonymous):
The equation of a line is y = mx + b, right?
OpenStudy (anonymous):
So, find where it crosses the y-axis (b), then find its slope (m) (rise/run), then plug it into that equation.
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OpenStudy (anonymous):
does it pass through -5?
OpenStudy (anonymous):
No. You're in the right area, but not quite.
OpenStudy (anonymous):
Hint: parallel lines will have the same slope.
OpenStudy (anonymous):
how do i add a second line to that graph
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OpenStudy (anonymous):
?
OpenStudy (anonymous):
Click underneath the first graph
OpenStudy (anonymous):
I already have a point on (2,0)
OpenStudy (anonymous):
Is it -3???
OpenStudy (anonymous):
It's -6
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OpenStudy (anonymous):
Okay
OpenStudy (anonymous):
now what? should i repost so someone else can help
OpenStudy (anonymous):
Look, you know that m = 3 and that b = -6, right?
OpenStudy (anonymous):
Just plug in those values into y = mx +b
OpenStudy (anonymous):
Ok