Question

find an equation for the line that passes through the points (1,-3) and (-3,-1)

Answer 1

The general form of an equation for a line is
\[y = ax + b\]
would you know where to go from here?

Answer 2

no

Answer 3

The two unknowns here are the slope of the line (a) and elevation (b).
If b increases or decreases, the line as a hole moves up or down in y-direction.
If a increases or decreases, the slope of the line does the same.

Answer 4

If the line
\[y = ax + b\]
goes through point (1,-3), what equation holds?

Answer 5

For the point (1,-3):
\[x=1\] and \[y = -3\]

Answer 6

Thank you

Answer 7

@salce08, check your messages.