Complete the solution of the equation. find the value of y when x equals -9

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

What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14

The formula to determine energy is e=1/2mv2? what is the formula solved for v?