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Mathematics 20 Online
sufiacuh:

Wha tia the slope of the line (-3,1) and (1,-2)?

SmokeyBrown:

Remember you can find the slope of the line between two points by taking (y_1 - y_2) / (x_1 - x_2) Say (-3, 1) is point 1 and (1, -2) is point 2. Can you use the appropriate values in the equation to find the slope?

sufiacuh:

**what is the slope of the line containing (-3,1) and (1,-2)

sufiacuh:

Yes

SmokeyBrown:

Let's start by defining the coordinates. If "point 1" is (-3, 1), then y_1 = 1 and x_1 = -3 Then for "point 2" (1, -2), y_2 = -2 and x_2 = 1. We can then plug them into the equation: Slope = (y_1 - y_2) / (x_1 - x_2) Would you like to give it a try?

sufiacuh:

Sure I’ll do it on a piece of paper just a second

sufiacuh:

1-(-2) ———- -3-1

sufiacuh:

Is that right?

SmokeyBrown:

Yup, so far so good! Keep going...

sufiacuh:

That equals -3/4

sufiacuh:

?

SmokeyBrown:

Great! I think you've found your slope. That looks right to me.

sufiacuh:

Ok. Thank you for the help:)

SmokeyBrown:

No problem :) I'm glad I could help

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