maths

Bearings are always 3 figures

000, 026, 210

Tell me about equations of a parallel line

Parallel lines always have the same gradient e.g. 4x

Often use Y equals MX plus C or

Y2-Y1 over X2-X1

(Change in Y over change in X)

AQA question

In error intervals don’t forget the sign less than and equal to

In equations of a line:

Y equals MX plus C

Downwards line always is the negative gradient

Trigonometry

Error intervals

If a number is truncated to a one decimal place it means you just remove all the digits after the first decimal place

E.g.

this decimal:

3.4868

Is truncated to 1dp

So is-

3.4

in error intervals if something has been truncated, you just use the number given and the number above because you can’t go in between i.e. a decimal point

Truncated question

In quadratic graphs, what does roots mean

ROOT MEANS SOLUTION

so ur just finding the solution to i.e.

x squared - 6x+5

So which is on the graph 1 and 5

( basically the points which cross the x axis )

SO ANSWER IS X = 1 and X = 5

On quadratic graphs, what is the turning point?

The turning point is the lowest point in the graph.

(Where the pink arrow is)

In the quadratic graphs does the line of symmetry go through the turning point?

YES IT DOES

What is the equation for the line of symmetry on this graph?

X = 3

In quadratic graphs, there’s another fact!

Can u guess what it is?

Hint - turning point

The x co-ordinate of the turning point will always be in between the two roots

Do this question

Answers on the pic

Yes