Question

@TheSmartOne
An activity takes 63 minutes when there are 4 participants. The activity takes 87 minutes when there are 6 participants. Assume the relationship is linear.

A line models the relationship between the number of participants, x, and the number of minutes, y. What is the slope of the line?

Answer 1

D

Answer 2

Woops I posted the wrong question. Hold on...

Answer 3

OK, I changed the question, do you know this one? :)

Answer 4

You are given two points on a line: (4,63) and (6,87).
Find the slope. Then find the equation of a line through it.

Answer 5

Oh, they just want the slope. So you can stop there.

Answer 6

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

Answer 7

So...\[\frac{ 4-6 }{ 63-87 } =\frac{ -2 }{ -24 } = ?\]

Answer 8

@aum

Answer 9

You have reversed the x and y's. It should be the reciprocal.

Answer 10

\[
\frac{87-63}{6-4} = ?
\]

Answer 11

Oh woops. :) \[\frac{ 24 }{ 2 } = 12?\]

Answer 12

@aum

Answer 13

Yes, slope = 12.