If the store is making 18 jars of jam, how many cups of sugar will they need?

A 8 cups
B 9 cups
C 8.5 cups
D 9.5 cups

B. 9 cups

Step-by-step explanation:

The x coordinate is number of jam jars while y coordinate is number of cups of sugar.

If you look at the graph at (2,1), it is saying that there is 1 cup of sugar for every two jam jars.

If you look at (4,2) that is saying that for 4 jars of jam, they need 2 cups of sugar, which confirms my statement above that the ration of Jam Jars to Cups of Sugar is 2:1.

The last point on our graph is (10,5). Lets continue from there.

(12,6)

(14,7)

(16,8)

(18,9). If you noticed, the y is always HALF of the x is this problem.

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is