Answer:A, B and D
Step-by-step explanation:
A linear relationship is one in which when the variables are plotted, the graph would be a straight line. In a linear relationship, the highest power of the variables is 1. We would compare each of the given relations.
A) Double x and subtract five to get y. This is expressed as
2x - 5. It is a linear relationship.
B) Multiply x and y to get 20. This is expressed as
xy = 20. It is a linear relationship.
C) Multiply x times itself and add five to get y. This is expressed as
x^2 = y. It is not a linear relationship. The highest power of the variables is 2
D)Divide 40 by x to get y. This is expressed as
40/x = y. It is a linear relationship.
