The graph of which function will have a maximum and a y-intercept of 4? f(x) = 4x2 + 6x - 1 f(x) = -4x2 + 8x + 5 0 f(x) = -x²+2x+4 o f(x) = x2 + 4x-4. zs

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

4. (10.03 mc) the equation of line cd is y = −2x − 2. write an equation of a line parallel to line cd in slope-intercept form that contains point (4, 5). (4 points) y = −2x + 13 y = negative 1 over 2 x + 7 y = negative 1 over 2 x + 3 − 2x − 3

The volume of a spherical hot air balloon v(r) = 4 3 ? r3 changes as its radius changes. the radius is a function of time given by r(t) = 3t. find the instantaneous rate of change of the volume with respect to t at t = 2.