Linear relationships can be expressed either in a graphical format or as a mathematical equation of the form y = mx + b. Linear functions are widely used in economics, physics, finance, and data ...

Revise solving linear equations for your maths GCSE foundation and higher exams with Bitesize interactive practice quizzes covering feedback and common errors.

In order to graph linear equations by finding intercepts, we must remember what an x and y intercept are. So remember that in an x-intercept it’s the y that equals zero, and for the y-intercept it’s ...

Solving equations with light. (Courtesy: iStockphoto/Henrik Jonsson) 3 x + y = 2 x + 3 y = 0 It’s the sort of easy maths problem that you can work out in a few minutes using pencil and paper, but ...

Linear regression equation The linear regression equation is perhaps one of the most recognizable in statistics. It can be used to represent any straight line drawn on a plot: Where ŷ (read as “y-hat” ...

The option to input an equation is at the top-right corner of the calculator window. As you can see from the picture above, you can compute both linear and quadratic equations in the calculator.