Question

What m equals and b equals to and the equation

Answer 1

m=-2

b=1

Explanation:

y=mx+b

b=y-intercept

y intercept is at (0,1) so b is 1

m=slope

taking 2 points (0,1) and (-1, 3) and using the slope formula:

(1-3)/(0-(-1))=2/-1=-2

m=-2

Things to take away:

y-intercept form of a linear function is y=mx+b

where m is the slope

and b is the y value of the y-intercept

the slope formula is
`m=(y_(1) -y_(2))/(x_(1)-x_(2))\\`

given points
`(x_(1), y_(1))` and
`(x_(2), y_(2))`