Graph the direct variation y=−1.5x. Using the graph, find:

Question

Reference
b
The value of x when y=−3; 4.5; 6

Answer 1

y= mx + b

there is no b so b = 0
You will start your graph at (0,0)

m = -1.5 means that the graph will slant downward from left to right
-1.5 = -3/2 or 3/-2

you can move down -3 and to the right 2

or up 3 and to the left 2 to start your graph. Follow this pattern.

x has to = 2 when y = -3.

dived the y values given by -1.5 to find the other x values.

Answer 2

Graph the direct variation y=−1.5x. Using the graph, find: The value of x when y=−3; 4.5; 6