Question

Jo is pouring a driveway and he mixes cement and water in the correct ratio. X represents the cement and y represents the water. The graph includes (54,120) (108, 240) (162, 360) (216, 480). He says (63, 140) is included in the relationship of the graph. Is he correct?

Answer 1

Yes.

Explanation:

y/x = 2.22..... for all the 4 points given.

The graph is a straight line with slope 2.22....

140/63 = 2.2222... also so this is included in the realtionship