Question

Question #635ec

Answer 1

Find the slope and then the y intercept.

Explanation:

So let's assume you were given the points of:
`(a,b) (c,d)`

First, you'd want to find the slope of the line between the two points. You'd use the following formula to find the slope:
`(d-b)/(c-a)`

So now, you'd want to take this equation: `Y=mx+b`
Then, you'd fill in the slope for the `m` value.
Next, fill in the two values of A and B: `B = (slope)A + x`
Then solve for X and complete the whole equation.

For example, in `(1,2)` and `(3,4)`;
The slope would be `(4-2)/(3-1) = 4/2 = 2`

So, `m=2`

Now, we need to fill in the slope in the equation. Remember that we also fill in the `a` and `b` values. `B=2` and `a=1` because `(a,b)=(1,2)`.
The new equation is `2 = 2(1)+x`
You'd multiply `2 and 1` and then subtract `2` from both sides, getting that the `x = 0`.

Your equation now would be `Y=(2)x+0`