Top answers

How do you measure the gradient of a straight line joining two points?

There is a simple method for working out the gradient of a straight line joining any two points, for which the X and Y coordinates are known. For instance, if our first point is: A(X 1 ,Y 1 ), and our second...
AT
Answered by Alex T. • Maths tutor
12787 Views

What is 17% of 84?

We know that 17% is the same as 17/100 or 0.17 so we do 0.17*84 = 14.28.
CB
Answered by Chris B. • Maths tutor
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How do you solve quadratic equations?

A typical GCSE question will give you an equation in the from ax 2 + bx + c, x 2 - 8x + 15 = 0 for example, and ask you to solve the possible value of X. To do this we need to split the equation into two hal...
TD
Answered by Tutor55115 D. • Maths tutor
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How do you solve the following simultaneous equations? Equation 1: 2x + 3y = 13 Equation 2: 3x - y = 3

There are various ways to solve simultaneous equations. The two easiest are by elimiation and by substitution. By Elimation When solving by elimination you want to ensure that you only have one variable (x o...
LS
Answered by Luke S. • Maths tutor
9370 Views

For the equation y=2x+7, what is the gradient and the y intercept?

For all straight line equations as the one above, the equation is y=mx+c where: m is the gradient, c is the y-intercept. Thus from the arrangement of the given equation, gradient = 2 and y-intercept = 7 .
MP
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