Question

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

Answer 1

What is the change in y coordinates??

Answer 2

3

Answer 3

How??

Answer 4

1--4= -3

Answer 5

See, -(-) = +

So, 1 - (-4) becomes 1 + 4

getting??

Answer 6

5 but how

Answer 7

-(-) becomes positive...

Do you get that??

Answer 8

ok so how to find the ans

Answer 9

so you found y change = 5..

Now similarly tell me the change in x coordinates..

Answer 10

-5

Answer 11

Yes..

Now,
\[Slope = \frac{y \; change}{x \; change}\]

Can you do it now??

Answer 12

0

Answer 13

How??

Answer 14

\(Slope = \frac{5}{-5}\)


Is it 0???

Answer 15

no u r wrong

Answer 16

How??

Answer 17

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

Answer 18

is in between -2 and 2

Answer 19

See, the other formula of slope is:

\[Slope = \frac{y_2 - y_1}{x_2 - x_1}\]

Answer 20

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

Answer 21

Is -1 not between 2 and -2??

Answer 22

\(-2, -1, 0 , 1, 2\)

It is between 2 and -2..