Question

helppp!
Is the line through points P(8, 3) and Q(4, 2) parallel to the line through points R(–5, –5) and S(–1, –2)? Explain.

Answer 1

A. Yes; the lines have equal slopes.
B. Yes; the lines are both vertical.
C. No; the lines have unequal slopes.
D. No; one line has zero slope and the other has no slope.

Answer 2

just use the formula (y-y1)/(y2-y1)=(x-x1)(x2-x1)
to frame the eqns and compare their slopes

Answer 3

Got them?