Slope intercpet form is y = mx + b
1:
y = 0.5x + 34
It is 34 so our b aka y-intercept is 34, and it is rising by 0.5 so our m is 0.5
2:
y = x + 40
A movie is 1 dollar so 1x = x and the pass is 40 so our b aka y-intercept is 40
3:
y = 5x + 3
Every hour is 5 (x=hour) plus a flat fee of 3 so our b aka y-intercept is 3
(there is some repeating in what I am saying [our b aka y-intercept is blah blah] as these are all similar equation processes so sorry about that, hope this helps! )