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How do you find the mean of 5 values?

As a general rule of thumb, to find the mean of a given set of numbers: add up all the numbers youve been given and divide by the number of values you have. e.g. Find the mean of these values: 5, 10, 8, 9, 2...
OP
Answered by Olivia P. • Maths tutor
32549 Views

Polynomial long division, how do I do it?

Polynomial long division is how to divide long functions f(x), called the dividend, by another function g(x), called the divisor. Which could lead to having a remainder, if it doesn't divide perfectly. Lucki...
GP
Answered by Giulio P. • Maths tutor
7678 Views

Discriminants and determining the number of real roots of a quadratic equation

What is a discriminant? A discriminant is a value calculated from a quadratic equation. It use it to ' discriminate' between the roots (or solutions) of a quadratic equation. A quadratic equation is one of t...
GN
Answered by Gus N. • Maths tutor
413375 Views

How can I find the area under the graph of y = f(x) between x = a and x = b?

You can find the area under this graph by evaluating the definite integral of y = f(x) with respect to x between x = a and x = b Please note: An area below the x-axis has a negative value Example: Find the a...
JR
Answered by Jonathan R. • Maths tutor
5480 Views

How do I find the equation of the normal line given a point on the curve?

The normal line to a curve at a particular point is the line through that point and perpendicular to the tangent. A simple trick to remembering how to find the normal gradient, n , is that the slope of any l...
JM
Answered by Joy M. • Maths tutor
86661 Views