## Pandalover485 one year ago Find the constant of proportionality and the unit rate for the data in the table. Then write an equation to represent the relationship between time t and distance d. time and distance table

1. Pandalover485

2. aga3t

D=KT K=45

3. Pandalover485

m confse can u showme step by step

4. Hope_nicole

you have to find the common change

5. Notamathgenius

The best I can say is you need to divide them, 90/2=45

6. Hope_nicole

|dw:1366133615431:dw|

7. Pandalover485

still confuse....

8. Notamathgenius

|dw:1366133724375:dw|

9. qweqwe123123123123111

d=45t ???

10. lstrasmann

If you divide each of them, what is the number you get each time?

11. Pandalover485

45

12. lstrasmann

Good. So that is the common change that @Hope_nicole was talking about.

13. Pandalover485

is tht all?

14. Pandalover485

I have a f in math im sooooooooooooo confuse...

15. lstrasmann

constant of proportionality - the constant value of the ratio of two proportional quantities x and y; usually written y = kx, where k is the factor of proportionality $90 = 2k$$135 = 3k$etc, etc So we know that 45 is the factor of proportionality, which is the first part of your problem. The unit rate is one over the factor of proportionality, so it would be 1/45 (45 miles per hour)

16. lstrasmann

or would it be 45/1?

17. lstrasmann

Yes, it is 45/1$\frac{ 45 miles }{ 1 hour }$ So now all you have to do is write an equation representing the rate.

18. Pandalover485

IT WOULD BE 1/45 RIGHT

19. Pandalover485

srry caps

20. lstrasmann

No, it is 45/1. I made a mistake.