A farmer notices that there is a linear relationship between the number of bean stalks, n, she plants and the yield, Y. When she plants 2 stalks, each plant yields 70 ounces of beans. When she plants 8 stalks, each plant yields 160 ounces of beans. Which of these equations correctly represents this situation?

Select the correct answer below:

Y(n)=19n+32

Y(n)=11n+72

Y(n)=11n+48

Y(n)=19n+8

Y(n)=15n+30

Y(n)=15n+40

Y(n)=15n+40

Step-by-step explanation:

Lets represent the number of bean stalks she plant by n and

the yield by Y.

It says in the question that when she plants 2 stalks, each plant yields 70 ounces of beans. When she plants 8 stalks, each plant yields 160 ounces of beans.

Which means 2 stalks correspond to 70 ounces and 8 stalks corresponds to 160 ounces we could write the data Mathematically like:

(2 , 70) and (8 , 160) are our coordinates where the x-axis would be n the number of beans stalks planted  and y-axis would be Y the yield in ounces.

So we have two coordinates and to find the linear relationship we must find out the slope/gradient(m) of the linear function by the formula of slope:

so we plug in one of the coordinates and our slope in the point-slope formula :

where,

so plugging in the coordinate and the value of m we get:

so our the answer is the last option

Y(n)=15n+40

here x corresponds to n and y corresponds to Y(n)

step-by-step explanation:

it will be a cylinder. with a diameter of 8 and 4 single pieces high

answer for #1 is c

answer for #2 is d

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