What is the axis of symmetry of f(x)=-x^2+8x-15

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

Which ahows the graph of the solution set of 6x+4y< 12

Sketch one cycle if the cosine function y=2cos2theta