Input 1, 3, 4, 3 output 1, 9, 16, 27

is it a function

A. yes, each input has only one output
B. yes, each output has only one input
C. yes, each output is the square of the input
D. no, the input 3 has 2 outputs

what would the answer be?

To find the extreme values of a function f(x.y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x,y)=xy

Which of the following is true about the graph of f(x)=7^x. select all that apply. a= it intercepts the x axis b=it intercepts both axis c=it intercepts neither d=it intercepts the y axis

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?