Question

Which functions have a positive rate of change and which have a negative rate of change?
Column A
1.
2x + 3y = −9
2.
y = 3x − 6
3.
x y
−1 9
0 7
1 5

4.
x y
2 −8
3 −7
4 −6
Column B
A.
positive
B.
negative

Answer 1

Which function has the greatest rate of change?

A.
6x – 3y = 12

B.
y = 5x + 4

C.
x y
1 2
3 8
5 14


D.
A linear function that goes through point 1, 1 and point 0, negative 3

Answer 2

Forget the first question

Answer 3

The slope of a line is its rate of change.