Which of the following relations represents a function? { (-2, 1), (0, 5), (1, -3), (-2, 0)}

{ (-3, 1), (1, 4), (-2, 1), (0, 3)}

{(-1, 3) (-2, 3) (-1, 5) (-2, 5)}

{ (4, 2), (4, 3), (4, 5), (4, 7)}

Rachel reads 1/5 of the pages of a book plus 12 pages on the first day. on the second day, she reads 1/4 of the remaining pages plus 15 pages. on the third day, she reads 1/3 of the remaining pages plus 18 pages. on the fourth day, she reads the remaining 70 pages. how many total pages are in the book?

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36

In a 45-45-90 right triangle, what is the ratio of the length of one leg to the length of the other leg? а . 1: 2 в. 2: 1 с. 2: 1 d. 1: 1