Radicals are the opposite operations of exponentiation. Radical symbol consists of check mark and vinculum. Index indicates root type, argument is the number inside radical
Roots are numbers that when multiplied by themselves produce the original number. Square root is found by multiplying by itself twice. Cube root is found by multiplying by itself three times. Perfect squares increase rapidly from 1 to 144
Equation is rewritten as y=-x²+2x. Completing the square gives a=-1, b=2, c=0. Vertex form is -(-x-1)²+1
Equation is f(x) = x² + 2x - 1. Vertex coordinates are (-1, -2). Parabola opens up since a > 0
Tan2x is a double-angle identity in trigonometry. Repeats value after every 2π radians. Graph is noticeably thinner than tan x