Question

What is the slope of the line that passes through 4, 1 and 7, -2?

1/3
1
-1
-1/3?

Answer 1

Hi welcome to opentudy :)
Use the slope formula
\[\LARGE \frac{y_2-y_1}{x_2-x_1}=slope\]

Answer 2

Are you familiar with that?

Answer 3

Yes but idr how to do it

Answer 4

Ok can you start by tell me what:
y1=?
y2=?
x1=?
x2=?
Can you tell which values correspond with each?

Answer 5

(4, 1) ( 7, -2)
(x1,y1)(x2,y2)
See if this helps

Answer 6

Okay, I get 5?

Answer 7

How did you get that?

Answer 8

4-1/7- -2

Answer 9

Not quite the way ordered pairs work are like this
(x,y) (x1,y1)
So we have:
x1=4
x2=7
y1=1
y2=-2
\[\LARGE \frac{y_2-y_1}{x_2-x_1}=slope\]
\[\LARGE \frac{-2-1}{7-4}=slope\]
Now solve and find the slope :)

Answer 10

Ohh ok, -1?

Answer 11

yes well done :)

Answer 12

Thank you! :)

Answer 13

yw ^_^
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