What is a food that provides energy to perform activitie in a food chain

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

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)