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Note the formula: y - y₁ = m(x - x₁)x, y, x_1, y₁ refer to the values of your given coordinates. 'm' symbolises the gradient of the line you are asked to findRe...

There are more ways how to solve such equation:You can use the quadratic formula after rearranging the equation into the standard form. That is the safest way because you just learn the formula and use it...

There are 3 types of stationary points for functions: a maxima, a minima and a saddle point. They all occur when the derivative of a function, f(x), is equal to 0, e.g. f'(x)=0. Therefore in order to find...

Chain Rule: dy/dx = dy/du x du/dxy=e^3-2xSubstitute u for the power (3-2x) y = e^u u = 3-2xdy/du = e^u du/dx = -2dy/dx = -2e^u = -2e^3-2x

A quadratic function will either have a minimum or a maximum value depending on the shape of the function. A quadratic function with a positive value in front of the x^2 term has a U shape and therefore h...