Answer :
Answer:
Explanation:
Given
12 bagels cost $10.80
An additional cost = $6.50 per gallon of coffee
To find:
the slope of the situation
[tex]\begin{gathered} In\text{ an equation of line:} \\ y\text{ = mx + b} \\ m\text{ = slope = rate} \\ b\text{ = y-intercept \lparen additional cost or intial cost\rparen} \end{gathered}[/tex]The slope is also known as the unit rate of an item. From the information, 12 bagels cost $10.80. We need to find the cost of one bagel
let the cost of 1 bagel = b
12 bagels = 10.8
1 bagel = b
cross multiply:
12(b) = 1(10.8)
12b = 10.8
b = 10.8/12
b = 0.90
The unit rate of the bagel is $0.90
Hence, the slope is 0.90 (2nd option)