Question

http://prntscr.com/4cj1l3

Answer 1

@kirbykirby

Answer 2

a) Yes, there is a perfectly positive linear correlation. For every +1 increase in number of hours, there is a +3 in the height of the plant.

b) You can model this using a basic y = mx+b function. Now the y-intercept is the "b" in the equation, which is the value of the function when x =0, so from the table, b = 4. SO you have y = mx+4

The slope is (change in y)/(change in x ) using 2 points, so (10 - 7)/(2-1) = 3

So the equation is y = 3x+4 (you could also have done this "by eye" if you noticed that I said the increase is always + 3 for every +1 increment of x).

c) The y-intercept indicates how tall the plant was at the beginning of the experiment (when there was 0 hours of sunlight). The slope indicates that for every hour increase of sunlight, the plant grows 3 more cm

Answer 3

thx u

Answer 4

yw :)

Answer 5

wait so that it?

Answer 6

I would say so. Well maybe a) could use some more explanation.. a good way also would be to do a rough sketch/plot and show that every point lies perfectly on the line.

Answer 7

ok thax again tho

Answer 8

your welcome

Answer 9

can u give me a little more detail in this please