Question

What is the equation of a line with slope of -2 that passes through the point (0,1)?

Answer 1

`y=-2x+1` graph{y=-2x+1 [-10, 10, -5, 5]}

Explanation:

As `y=mx+c`

Substitute the values:
`y`=1
`x`=0
`m`=-2
And `c` is what we are to find.

So; 1=(-2)(0) + `c`
Hence c=1

So equation = `y=-2x+1`

Graph added for proof.