if x equals 0,1,2,3 and y = 5,10,15,20 what is the pattern written as an equation--please help can't figure out this one

The change in y equals 5 times the change in x. That means the slope (m) equals 5.

When x = 0, y = 5. That is the y-intercept, which is usually called b.

The straight-line equation equation is

y = mx + b

Substitute the appropriate values of m and b.