Answer: B) 18
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Explanation:
x = number of packs of yogurt (column 1)
y = number of ounces of yogurt (column 2)
To get the constant of proportionality k, we divide y over x
k = y/x
k = 36/2 = 18 .... from row 1
k = 54/3 = 18 ... from row 2
k = 90/5 = 18 .... from row 3
This k = 18 value means that each time x goes up by 1, the value of y goes up by 18. This is the slope of the line y = 18x, so it represents the rate of change.
Put another way: 1 pack of yogurt is 18 ounces
Answer:
i think a) W
...................................hope this helps
Because it become 4(0.625) then it is 2.5
Answer:
We have function,

Standard Form of Sinusoid is

Which corresponds to

where a is the amplitude
2pi/b is the period
c is phase shift
d is vertical shift or midline.
In the equation equation, we must factor out 2 so we get

Also remeber a and b is always positive
So now let answer the questions.
a. The period is


So the period is pi radians.
b. Amplitude is

Amplitude is 6.
c. Domain of a sinusoid is all reals. Here that stays the same. Range of a sinusoid is [-a+c, a-c]. Put the least number first, and the greatest next.
So using that<em> rule, our range is [6+3, -6+3]= [9,-3] So our range</em> is [-3,9].
D. Plug in 0 for x.





So the y intercept is (0,-3)
E. To find phase shift, set x-c=0 to solve for phase shift.


Negative means to the left, so the phase shift is pi/4 units to the left.
f. Period is PI, so use interval [0,2pi].
Look at the graph above,