Question

The table and the graph below each show a different relationship between the same two variables, x and y:

X Y GRAPH
4 100 X Y
5 125 2 60
6 150 4 120
7 175 6 180
8 240


How much more would the value of y be on the graph than its value in the table when x = 12?
20
30
60
70

Answer 1

For the table, y = 25x.
When x = 12, y = 25(12) = 300

For the graph, y = 30x
When x = 12, y = 30(12) = 360

When x = 12, the valu of y on the graph is 60 more than its value in the table.