Slope intercept form is y = mx + b where m= slope and b= y-intercept. So you know it’s y = 1x + b.

Plug in a known point, either one, for x and y:

5 = 1(3) + b

so b must be 2 and the answer is y = 1x + 2 or just y = x + 2

Similarly, on the other one, you know it’s y = 1x + b

3 = 1(3) + b so b = 0 and answer : y = 1x + 0 or just y = x

Hope that helps

(5-4)/(3-2) = 1

In point slope form you get: y – 4 = 1( x – 2) or y – 4 = x – 2

If you want to rewrite this in slope intercept form ( y = mx + b), add 4 to both sides: y = x + 2

For the second problem, there are two ways to do it:

1st method: Write in point slope form

y – 3 = 1 (x – 3) or y – 3 = x – 3

Add 3 to both sides, y = x

2nd method: Plug point and slope into slope intercept form to find b

y = mx + b

3 = 1(3) + b

3 = 3 + b

0 = b

Thus your equation is y = 1x + 0 which simplifies to y = x