## huneya 2 years ago What is the slope of the line between (3, –4) and (–2, 1)?

1. waterineyes

What is the change in y coordinates??

2. huneya

3

3. waterineyes

How??

4. huneya

1--4= -3

5. waterineyes

See, -(-) = + So, 1 - (-4) becomes 1 + 4 getting??

6. huneya

5 but how

7. waterineyes

-(-) becomes positive... Do you get that??

8. huneya

ok so how to find the ans

9. waterineyes

so you found y change = 5.. Now similarly tell me the change in x coordinates..

10. huneya

-5

11. waterineyes

Yes.. Now, $Slope = \frac{y \; change}{x \; change}$ Can you do it now??

12. huneya

0

13. waterineyes

How??

14. waterineyes

$$Slope = \frac{5}{-5}$$ Is it 0???

15. huneya

no u r wrong

16. waterineyes

How??

17. waterineyes

Aren't you getting the answer (-1) ???

18. huneya

is in between -2 and 2

19. waterineyes

See, the other formula of slope is: $Slope = \frac{y_2 - y_1}{x_2 - x_1}$

20. waterineyes

$Slope = \frac{1 - (-4)}{-2-3} = \frac{5}{-5} = -1$

21. waterineyes

Is -1 not between 2 and -2??

22. waterineyes

$$-2, -1, 0 , 1, 2$$ It is between 2 and -2..