a) Determine y-intercept of line containing points(6,-1) and (-8,0). Write the answer correct to three decimal places.
b) Determine slope of line having the points (6,4)and (-7,8).
c) Compute the slope of line whose equation is:
-7x + 9y = -7
d) Find slope of line whose equation is:
10x + 5y = 2