Which linear function shows a direct variation? Graph A On a coordinate plane, a line goes through points (negative 1, 0) and (0, 2). Graph B On a coordinate plane, a line goes through points (0, negative 2) and (0, 1). Graph C On a coordinate plane, a line goes through points (0, 2) and (1, 0).

step-by-step explanation: h: (- 3, 6)

m: (1, - 2)

o: (7, 6)

r: (- 9, - 2)

midpoint of hm: (- 1, 2)

midpoint of or: (- 1, 2)

therefore, b is the midpoint of both diagonals bisect each other !

to prove the diagonals are perpendicular, show that the product of the slopes = - 1

c.35

step-by-step explanation:

8+13=21

21+8=29

29+6=35

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.