Answer: y = 2x^4
The graph represents a parabolic-looking shape so it's either a quadratic or some even degree polynomial. This rules out y = -2x^3 and y = 2x^3 as they are cubics with odd degrees
The degree of a polynomial is the largest exponent. It determines the end behavior. In this case, both ends are rising upward together. Because they are rising up in the positive y direction, this means that we cannot have y = -2x^4 as the answer. For example, if x = 2 then y = -2*x^4 = -2*2^4 = -32, but the point (x,y) = (2,-32) isn't on the blue curve. So we can rule y = -2x^4 out.
The fact that y = 2x^4 has a positive leading coefficient tells us that the endpoints point upward.
Answer:
$4911.45
Step-by-step explanation:
To find Megan's average daily balance, we first need to assume that the billing cycle begins at January 1st.
Now we know that there are 31 days in the month of January, we will use that as our basis.
20 days x 4805 = First 20 days of the billing cycle.
11 days 4805 + 300 = 21st day of the billing cycle.
31 days in the month
So now we simply add the first 20 days and the days after the 21st day and divide it by the number of days in the month since we're looking for the average.
(20 x 4805 + 11(4805+300))/31
(20 x 4805 + 11(5105))/31
(96100 + 56155)/31
152255/31
This then gives us:
$4911.45
Answer:
A & D
Step-by-step explanation:
The parabola opens up, so the minimum value of y is at the point (1, -2) and the graph passes thru the x-axis at 3 and -1, so those are the x-intercepts.
The axis of symmetry is x = 1, not y = -2 and the graph never has a maximum value. Parabolas that open up never have a maximum value.
