Question

How do you write an equation for a line with m=3.5 and `f(-2)=1`?

Answer 1

`f(-2)=1` means that a point exists at `(-2,1)`. Using our formula for the slope-intercept form of a line, `y=mx+b`, we can just plug in values and find the equation:

`1=3.5(-2)+b`
`1=-7+b`
`8=b`
`y=3.5x+8` or `y=7/2 x+8`