A science class is tracking the progress of plant growth. The class starts the experiment with a plant five centimeters high. Th
e plant grows two centimeters each day. The model for plant growth 'y' is given by: y = 2x + 5. What is the meaning of the y
intercept in this equation?
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the y-intercept is the starting date
the y-intercept is two times larger than five
the y-intercept is the starting height of the plant
the y-intercept is the largest height the plant can grow
Answer: C) the y-intercept is the starting height of the plant
Step-by-step explanation:
In the equation of a straight line, there is a slope (2) and a y intercept (5). The y intercept is where the line crosses the y axis. It is the starting point for the y values. The science class starts the experiment with the plant being 5 centimeters high and since this is the starting point/height, this is also the y intercept.
Find the volume of the first figure, then find the volume of the second figure, then add them together. V=lwh V(1)=(15)(12)(6) = 1,080in^3 V(2)=(12)(6)(6) = 432in^3 -------------------------------------------- 1,080+432= 1,512 in^3 -------------------------------------------- Your answer should be 1,512
You are given that v0=15ft/s and h0=0ft and let g≈-32 so
h(t)=-16t^2+15t
It will hit the ground when h(t)=0 so:
0=-16t^2+15t which is equal to
16t^2-15t=0 factor
t(16t-15)=0, since we are looking for the time other than zero...
t=15/16 of a second :)
So they obviously just rounded to one whole second. So C.) was the correct answer. (Although I would say they are all wrong because they didn't SAY to round the answer :P) Haha, not trying to confuse you, the answer is most likely C. because they had the correct equation.
