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If a line is in the form y=mx+c why does m give you the gradient of the line

gradient is change in y over change in x.

if (x1,y1) and (x2,x1) are lines on a graph then the change in y is y2-y1 and change in x is x2-x1, and since they are both on the line y1=mx1+c and y2=mx2...

Answered by Vedant B. • Maths tutor

3872 Views

How would I prepare for my Maths exams so that I get the best grade possible?

I would recommend that all A-level students should attempt all previous exam papers at least once. This is to pick up on common tricks that the examiner uses and in most cases these tricks keep coming up ...

Answered by Tom R. • Maths tutor

2888 Views

V= 4(h^3 +1)^0.5 - 4, find dv/dh when h=2

V= 4(h³+1)^0.5- 4 dV/dh= (4x 0.5) x 3h² x (h³+1)^-0.5 => 6h²(h³+1)^-0.5 Substitute h=2 into dV/dh => (6x2

Answered by Oliver D. • Maths tutor

4581 Views

What is the gradient of the quadratic function y=3x²?

The gradient of a function with variable x is found by applying the differential operator to it. The differential operator is commonly written as d/dx. Hence the differential operator applied to the funct...

Answered by Matthew C. • Maths tutor

8552 Views

There are two lines in the x-y plane. The points A(-2,5) and B(3,2) lie on line one (L1), C(-1,-2) and D(4,1) lie on line two (L2). Find whether the two lines intersect and the coordinates of the intersection if they do.

We first want to find the equations of the lines. The general equation of a line is: (y-y₁)=m(x-x₁) where (x₁,y₁) are the coordinates of a point on the line and...

Answered by Zsofia S. • Maths tutor

7052 Views