Is the relation shown below a function? Use the graph below to justify your response. A.
Yes; Each x-value has a unique y-value.
B.
Yes; Each y-value has a unique x-value
C.
No; Two points have different y-values for the same x-value of 2.
D.
No; Two points have different x-values for the same y-value of 2.

What is the equation of the following graph in vertex form? parabolic function going down from the left through the point zero comma twelve and through the point two comma zero and turning at the point four comma negative four and going up through the point six comma zero and continuing towards infinity courtesy of texas instruments a: y = (x − 4)2 − 4 b: y = (x + 4)2 − 4 c: y = (x + 2)2 + 6 d: y = (x + 2)2 + 12

Evaluate the expression for the given value of the variable 7a - 4a for a =8

27 is what percent of 108? 27 is % of 108