Math

Question 1

What is the intercept in y = 5 - 2x and what is it called

Answer 1

5 and its called the y intercept

Question 2

Where is the gradient found in this y = 5 - 2x.

Answer 2

The 2

Question 3

What is the formula for gradients of a line?

Answer 3

y = mx + c

Question 4

What are the four line gradients called and positioning?

Answer 4

Positive (uphill), negative (downhill), undefined (up and down), zero (straight across)

Question 5

What way and where do the 4 quadrants go?

Answer 5

clockwise starting from top right corner

Question 6

What helps you to chose what function to use?

Answer 6

What helps you to chose what function to use?

Question 7

What are bearings?

Answer 7

Direction measure from north in a clockwise direction

Question 8

What are the three sides of triangles called in trigonometry?

Answer 8

Opposite (opposite angle), hypotenuse (longest side), adjacent (remaining side)

Question 9

How do you calculate a missing angle?

Answer 9

You push shift then sin cos or tan and bracket the two lengths of the sides

Question 10

How do you find the length of short and long sides using pythagorus?

Answer 10

square root of :
long side - add them both squared
short side - minus them both squared

Question 11

Difference between y intercept and gradient:

Answer 11

Gradient is the number with the x while the y intercept is just a number

Question 12

What are pythagorus triples?

Answer 12

3,4,5

Question 13

what is theta

Answer 13

it is a 0 with a line through it meaning unknown angle

Question 14

using trigonometry what symbol do you use to find short and long side?

Answer 14

short - times
long - divide

Question 15

how many decimal places do you round a angle to ?

Answer 15

1d.p

Question 16

what are inverse trig functions?

Answer 16

cos tan or sin with a -1

Question 17

how many digits do you always right bearings in?

Answer 17

3 - you can add 0 at the start if needed

Question 18

when you find short and long sides in trigonometry when do you times and divide?

Answer 18

when theres a number on the top you divide and when theres a number on the bottom you multiply

Question 19

m = what in coordinates

Answer 19

m = rise/run

Question 20

how do you use rise over run?

Answer 20

if the rise is 4 and the run is 2 the answer is 4/2 or 2/1 which is 2

Question 21

when given 2 coordinates what do you do?

Answer 21

go across then up then draw a line between them

Question 22

what is the difference between discrete and continuous data?

Answer 22

discrete u count continuous you measure