Can you help me find the slope and y-intercept from this graph? help me write it in y=mx+b form.​

the y intercept is 70

Because you have your X value which would be 2 in (2,3) and 3 in (3,2) and your y value which is 3 in (2,3) and 2 in (3,2) so what you would have to do in order to graph 2,3 you would go over right 2 and up 3. but in 3,2 you would go over 3 and up two.
Hope this helped