QUESTION $4(37$ MARKS$)($ please answer it step by step and if had to draw, please draw and this is from past year exam paper so the answer must not be from coding openGL$)$

a$)$ Vectors $a=(x3-2)$ and $b=(3-12)$ are $93\mathrm{.}7$ degrees apart. Solve for the highest

value of $x.$

$(15$ marks$)$

b$)$ Use Bresenham's algorithm to draw the line $y=0\mathrm{.}5x+1$ from $(1,1)$ to $(7,4).$ List the

pixel coordinates $(x,y)$ of the six points of the line segment, and show all working.

$(10$ marks$)$

c$)$ Create a way to use Bresenham's algorithm for lines with slope $>1.$

$(4$ marks$)$

d$)$ Write pseudo code for a function to draw a regular $N-$gon. Arguments for the function

are location $(x,y)$ and radius $r.$