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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+c, so y2-...
VB
Answered by Vedant B. • Maths tutor
5085 Views

Why do airbags make a car safer

In a car crash the car decelerates really quickly. If there is no air bag your head continues to travel at the same speed as before until it hits the dash board and decelerates really quickly upon impact, si...
VB
Answered by Vedant B. • Physics tutor
3332 Views

Describe a holiday you have been on.

L'année dernière je suis allée à Paris avec ma famille. Nous avons fait beaucoup de choses, par example nous avons visité la tour Eiffel et aussi Notre Dame. Mon chose préfèré était le musée de Louvre parce ...
CM
Answered by Charlotte M. • French tutor
3127 Views

How do I write a source based question?

To analyse a primary source I always find it helpful to use the 6 C's approach: 1) Content: Read through the source before all else and understand exactly what it is saying. Highlight all the main parts of t...
AC
Answered by Alexandra C. • History tutor
3624 Views

Describe how and explain why vegetable oils are hardened for use in foods.

Vegetable oils are reacted with hydrogen at 60 degrees Celcius in the presence of a nickel catalyst. This process is called hydrogenation. Vegetable oils contain carbon to carbon double bonds meaning they ar...
RJ
Answered by Rachel J. • Chemistry tutor
18406 Views