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What is a linear equation?

The form of a linear equation. y=ax+bWhat does it look like on a graph. What is the gradientWhat is the y-intercept.How would you plot it accurately.Examples.
KR
Answered by Kenneth R. • Maths tutor
3734 Views

How do you find the mean of a grouped frequency table?

The first thing to be aware of with grouped frequency is that we are not given the exact data, but instead we are told that we have some data and we have been able to divide it into set groups. Imagine we ha...
DH
Answered by Daniel H. • Maths tutor
4987 Views

A curve is defined for x > 0. The gradient of the curve at the point (x,y) is given by dy/dx = x^(3/2)-2x. Show that this curve has a minimum point and find it.

This is a typical exam style question, taken from an AQA paper. This question is testing your knowledge of stationary points and differentiation. Step 1: Find all stationary points by setting the first deriv...
YC
Answered by Yishuang C. • Maths tutor
5199 Views

Solve 10x - 7 > 13x +2

x < -3
NM
Answered by Nikhil M. • Maths tutor
3517 Views

Simplify: y+y-x×x

y+y=2y x×x=x 2 therefore, y+y-x×x=2y-x 2
KG
Answered by Kieran G. • Maths tutor
6802 Views