Help me out with these math problems (calculus)?

Question

write a general linear equation for the line through the two points
1. (1,1), (2,1)

write the slope-intercept equation for the line with slope m and y-intecept B

2. m=3, b=-2

3. m=1/3, b=-1

Find the (a) slope and (b) y-intercept, and (c) graph the line.

4. y=2x+4

Answer 1

This is not calculus, is it? The text book should have the equations for solving.
y=mx+b
y2-y1=m(x2-x1)