IA5-1 A/B Level Asynch- Finding Slope from Two Points

Last updated about 5 years ago

10 Nsɛmmisa

If you had trouble getting that one, watch the video below.

Sometimes, points can be too far apart to figure out the slope by drawing it on the graph. In those cases, we can use subtraction to figure out how many we go up or down, and how many we go over.

To see an explanation of #2-5, watch the video below.

To see that problem done, watch the video below.

To see the last three problems completed, watch this video.

IA5-1 A/B Level Asynch- Finding Slope from Two Points

Last updated about 5 years ago

10 Nsɛmmisa

Find the slope of the graph below. You may use the work box if it is helpful.

If you had trouble getting that one, watch the video below.

Sometimes, points can be too far apart to figure out the slope by drawing it on the graph. In those cases, we can use subtraction to figure out how many we go up or down, and how many we go over.

What is the difference in the y-values? (remember, points are written (x,y) and "difference" means subtracting)

What is the difference in the x-values? (remember, points are written (x,y))

The slope of this line is

Positive

Negative

Neither

Take your answers from the previous three questions and find the slope of this line.

To see an explanation of #2-5, watch the video below.

We can use that subtraction to find the slope of a line when we don't have a graph at all. The formula (which we just used without knowing) is:

null

The little 1's and 2's don't have a numerical value, but they name the points for us so we can put the correct x's and y's in the formula.

We want to find the slope of a line that contains the points (12,30) and (-48,10). Which of the expressions below has the correct values substituted in the correct places?

Find the slope of a line that contains the points (12,30) and (-48,10). Be sure to reduce your answer.

To see that problem done, watch the video below.

Find the slope of the line that contains the points (20,31) and (72,135). Remember to reduce your answer, and if you were taking a test, all your work would need to be shown.

Find the slope of the line that contains the points (-20,75) and (-8,39). Remember to reduce your answer, and if you were taking a test, all your work would need to be shown.

Find the slope of the line that contains the points (-40,-20) and (24,-4). Remember to reduce your answer, and if you were taking a test, all your work would need to be shown.

To see the last three problems completed, watch this video.