\f\f\fQuestion 6 Consider the quadratic function y = 2x- + 12x + 14. Rewrite the function in vertex format. O y=2(x-3)2 -4 O y=2(x+3)2-4 O y=2(x-3)2+4 O y=2(x+3)2+4Question 11 O Mark this question The vertical position y (in feet) of a rock t seconds after it was dropped from a cliff is given by the formula y = - 161-+ 14t+200. The base of the cliff corresponds to y = 0. How many seconds will it take for the rock to hit the ground at the base of the cliff? 6 seconds O 4 seconds O 8 seconds O 3 secondsQuestion 19 Mark this question Consider the following rectangle. 2x 5 12 3x How can we express the area of the rectangle in terms of the variable x?Question 20 Consider the quadrat'u: function _' ' - 2.2- "_'- What do we know about the graph of this quadratic equation, based on its formula? The vertex is {15} and it opens upward. The vertex is {15} and it opens dcn-vnward. The vertex is {1-43) and it opens downward. The vertex is {1-43) and it opens upward