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.



A. y – 15 = (x – 3)
B. y – 15 = 5(x – 3)
C. y – 3 = (x – 15)
D. The relationship cannot be modeled.

Answer 1

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) hope this helps you :)

Answer 2

so its a @toomuch2handle

Answer 3

yes its A :)

Answer 4

can i get a medal?

Answer 5

thanks :)

Answer 6

welcome anytime :)

Answer 7

Suppose y varies directly with x, and y = 8 when x = –6. What direct variation equation relates x and y? What is the value of y when x = –2?
A. y = –0.75x; 1.50
B. y = –1.33x; 2.67
C. y = 1.33x; –2.67
D. y = 0.13x; –0.25

Answer 8

can you help me on this 1?

Answer 9

ok

Answer 10

y = kx where k is held constant.
8 = -6k
k = -4/3
y = -2(-4/3)
y = -8/3
Therefore, k = -1.33 and y_2 = -2.66 its B :)

Answer 11

Thanks so much ;)