Answer:
-40
Step-by-step explanation:
Plug in 9 for x.
Use Order of operations
-10(9) = -90
-90 + 50 is the same thing as saying 50 - 90
we can simplify by splitting the -90 in to a -40 and a -50
the new equation could be 50 - 50 -40.
50 - 50 = 0
0-40 = -40
Answer:
Plant 1 is growing faster (choice A)
Step-by-step explanation:
Plug x = 0 into the equation given to find that
y = 3 + 1.5*x = 3 + 1.5*0 = 3
Meaning that at the start, plant 2 is 3 cm tall. Now plug in x = 1
y = 3 + 1.5*x = 3 + 1.5*1 = 4.5
Now plant 2 is 4.5 cm tall. It has grown 1.5 cm since the first measurement. This is the rate of growth. It grows 1.5 cm per day
Compare this to the table and we see that the rate of growth here is 2 cm per day. Each time x increases by 1 in the table, y increases by 2 (eg: from 1.5 to 3.5)
So we see that plant 1 (table) has a larger growth rate compared to plant 2 (equation).
There are 42÷2=21 homes very month. As a result,21×6=126 homes every 6 months is your final answer. Hope it help!
