The x-intercepts of a parabola are also known as roots.
These are the point(s) at which the graph crosses the x-
axis.
Sketch the points on the graph.
Given the quadratic function for the graph on the
left,
f(x) = (x + 7)(x-3)
determine the roots/x-intercepts of the parabola:

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe