How is the product of 3 and -2 shown using integer tiles? :)

Aquadratic function f(x) has a turning point at (3,-7). what is the turning point of -f(x)?

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6