The table shows the height of a plant as it grows. What equation in point-slope form gives the plant’s height at any time? Let y stand for the height of the plant in cm and let x stand for the time in months.

Time (months): 3; Plant Height (cm): 15

Time (months): 5; Plant Height (cm): 25

Time (months): 7; Plant Height (cm): 35

Time (months): 9; Plant Height (cm): 45

Question

The table shows the height of a plant as it grows. What equation in point-slope form gives the plant’s height at any time? Let y stand for the height of the plant in cm and let x stand for the time in months.

Time (months): 3; Plant Height (cm): 15

Time (months): 5; Plant Height (cm): 25

Time (months): 7; Plant Height (cm): 35

Time (months): 9; Plant Height (cm): 45

anonymous · Answer

A. y – 15 = (x – 3)	

B. y – 15 = 5(x – 3)	

C. y – 3 = (x – 15)	

D. The relationship cannot be modeled.

A, B, C, or D? Explain your answer. (:

nubeer · Answer

A..
Pick any two lines and calculate the gradient. i will pick first 2 for it
m = (25-15)/(5-3)
m = 5
y-y1 = m(x-x1)
y -15 = 5( x-3)

anonymous · Answer

Thank you for your answer. (:

nubeer · Answer

you're welcome :)