Answer:
Yes
Step-by-step explanation
For one book it is $2.25. So take $2.25 and multiply that by 4, and you get $9. That shows a proportional relationship.
Answer:
Step-by-step explanation:
The formula of a slope:
We have the points (-3, 5) and (-1, 4). Substitute:
the answer i got was 5% , because all you have to do is perform a proportion . you put $400 which is what avery made over the total money of the sale which is $8,000 . then you put n the variable over 100 so you can find the percentage of her commission . now you have to cross multiply , so you would multiply $400 and 100 . & $8,000 with the variable n . in the end you'll get 400*100= 40,000 and 8,000n= 8,000n . now you would divide 40,000 by 8,000 to get rid of the 8,000 off the variable . so 40,000/8,000= 5 . so the percentage of her sale is actually hers is only 5% .
Pick any two points and find the rise over run (y over x) this is how you get your slope as for the y-intercept look at the point where the line crosses the y-axis