constant of proportionality

Question 1

what is the constant of proportionality for the equation y=-3x?

Answer 1

-3 (because when Y goes down by negative 3X goes down by something else, not listed)

Question 2

what is the constant of proportionality for the equation y=9x

Answer 2

9
(when y goes up by 9, x goes up by something else, not listed)

Question 3

what is the constant of proportionality in the equation y=7x+4 (+4=y intercept)

Answer 3

7
(even though there is no constant of proportionality, the rate of change (slope) is 7)

Question 4

what is the constant of proportionality in the equation y=9x+1 (+1=y intercept)

Answer 4

9
(even though there is no constant of proportionality, the rate of change (slope) is 9)

Question 5

when the y and the x on the table go up both by 5 what is the constant of proportionality?

Answer 5

5

Question 6

when the y side of a table goes up by 3 and the x goes up by 2, what is the constant of proportionality?

Answer 6

3/2 or 1.5
(do change in y over change in x and divide numerator by the denominator)