Question

Please answer with explanation

Answer 1

a direct variation is a relation that is of the form y = mx

• example of a direct variation: y = 2x

a partial variation is is a relation that is of the form y = mx+b

• example of a partial variation: y = 2x + 1

• a non-linear function doesn't have a constant rate of change
• the graph for a non-linear relationship is curved
• a non-linear curve may show a positive or a negative relationship