Trigonometric graphs can be sketched when you know the amplitude, period, phase and maximum and minimum turning points. Learn about graphs of trigonometric functions in this National 5 Maths guide.

Four years after the pandemic emergency ended and K-12 performance plunged nationwide, New Jersey’s third through eighth graders are finally edging up to be on par with pre-pandemic levels, although ...

Quadratic graph lines are U- or Ո-shaped, which is called a parabola. A linear graph can be drawn using only three points. A quadratic graph is a curve, so more points are plotted to support accuracy.