y = m x + b
put in slope m
y = -1 x + b
put in point y = -2 where x = 1
-3 = -1(1) + b
so
b = -2
so
y = -x -2
graphing a line through a given point with a given slope.
graph a line with slope -1 passing through the point(1, -3)
Thank you just do not understand sorry.
6 answers
1st, plot the point (1,-3)
Now, a slope of -1 means that every time x changes by +1, y changes by -1.
Starting at the point (1,-3), move right 1 and down 1 to (2,-4) and plot that point.
Then draw a line through the two points.
And review the concept of slope...
Now, a slope of -1 means that every time x changes by +1, y changes by -1.
Starting at the point (1,-3), move right 1 and down 1 to (2,-4) and plot that point.
Then draw a line through the two points.
And review the concept of slope...
on your graph mark the point where x = 1 and y = -3
from there go right one and down one (slope of -1) and mark a second point.
draw a line through those two points.
from there go right one and down one (slope of -1) and mark a second point.
draw a line through those two points.
thank you very much
thank you
You are welcome.