Easy algebra questions

rewrite x^2 + 6x - 4 in vertex form and identify the vertex.
(x-5)^2 - 3 ; (5, -3)
(x+5)^2 - 3; (5, -3)
(x+3)^2 + 5; (-3, 5)
(x-3)^2 + 5; (-3, 5)

what are the four ways to solve a quadratic equation? (choose four options below)
- graphing to identify the x-intercepts
- y = mx + b
- factoring and setting each factor equal to zero
- completing the square
- exponential functions
- the quadratic formula

suppose the initial height of the stone is 12 feet and the stone is being launched with a velocity of 61 feet per second. what is the maximum height of the stone after it's launched?
a. -3/16 feet
b. 4 feet
c. 70 feet
d. 11 feet