I got 20.89, and nearest to the whole number would be 20.
Answer:
- Student cannot determine proportionality because there is no y-intercept.
- Table and graph do not match
(Student does not realize they are based on two different people)
- Student computes x/y and not y/x (Ex. 3/27 or 2/18)
Step-by-step explanation:
-May not be able to determine Unit rate because (1, r) does not exist on the table.
-May answer “18” because it is the first point on the table.
-Unable to determine relationship between x and y values
Answer:
y=5sin(16pix)+3
Step-by-step explanation:
Amp=5 means our curve is either y=5sin(bx+c)+d or y=-5sin(bx+c)+d.
y=sin(x) has period 2pi.
So y=sin(bx) has period 2pi/b.
We want 2pi/b=1/8.
Cross multiplying gives: 16pi=b
y=5sin(16pix+c)+d
d=3 since we want midline y=3.
y=5sin(16pix+c)+3
We can choose c=0 since we aren't required to have a certain phase shift.
y=5sin(16pix)+3
The answer is 1. f(a) = –2a^2 – 5a + 4. If a = -3, then to find f(-3) we
have to substitute a in the general formula. f(a) = –2a^2 – 5a + 4 = -2
* a^2 – 5 * a + 4. Substitute a with -3. f(-3) = –2 * (-3)^2 – 5 * (-3)
+ 4 = -2 * 9 - (-15) + 4 = -18 + 15 + 4 = 1
Answer:
d. plants take in water for photosynthesis
Step-by-step explanation:
an adaptation would be a way the plant has adapted in response to a specific environment
all plants take in water for photosynthesis, so it's not an adaptation to a habitat since plants in all habitats do that