Algebra

  1. If f(x)=x^2-2x+7, evaluate f(-8).
  2. Find the slope of the line passing through the points (6, –3) and (–1, 8)
  3. Find the y-intercept. Let x = 0 and solve for y. 6x-3y-6=0
  4. Solve by the square root property: 3x^2+27=0
  5. Find the product: 7i(2-9i)