Slope is change in y over change in x.
Slope = (1-3)/(8 - -2)
Slope = -2/10
Slope = -1/5
Answer: -1/5
Y=mx+b
-1=5(-2)+b
-1=-10+b
9=b
the equation is
y=5x+9
More information for 3/ 15 for the simplest form
<h3><u>Question:</u><u>-</u></h3>
A coca cola costs 150 yen. You buyed 30 bottles of cola and sold them at the price of 155 yen each. Find profit %
<h3><u>Answer</u><u>:</u><u>-</u></h3>
3.33%
<h3><u>Explanation</u><u>:</u><u>-</u></h3>
Cost price = ¥150
Selling price = ¥155
Total profit = Selling price - Cost price
→ = ¥155 - ¥150
→ = ¥5
Profit % = Profit × 100/cost price
️ = 5 × 100/150
️ = 10/3 = 3.33%