Graph a parabola whose x-intercepts are at x=-3 and x=5 and whose minimum value is y=-4

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0