Which of the following functions is a quadratic function? Select all that apply.
A. 4x = y +4
B. 5=-6x + y
C. 4x^2 + y = 7x - 5
D. y - x = 6
E. 6x^2 + y = 0

the aswere is the one with all 8's and the second one is with the 10,8 and 6

step-by-step explanation:

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870

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step-by-step explanation:

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1/4 is the answer if i recall correctly.