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Year 9 - Maths > Key info > Flashcards

Key info Flashcards

1
Q

What type of graphs are quadratic and why is it quadratic?

A

x squared,

the legs have to be the same as the positive.

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2
Q

What is a straight line?

A

x

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3
Q

What is the reciprocal of 3?

A

1/3

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4
Q

What does reciprocal mean?

A

Reciprocal makes one.

What do you times to make it one?

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5
Q

What is the equation for distance?

A

Speed x time

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6
Q

What is the equation for Speed?

A

Distance / time

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7
Q

What is the equation for time?

A

distance / speed

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8
Q

What is the triangle for Distance, speed and time?

A

D

s t

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9
Q

What is the equation for Mass?

A

Density x volume

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10
Q

What is the equation for Density?

A

Mass / volume

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11
Q

What is the equation for volume?

A

mass / density

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12
Q

what is the triangle for mass, density and volume?

A

M

d v

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13
Q

What is the equation for force?

A

pressure x area

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14
Q

What is the equation for pressure?

A

force / area

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15
Q

What is the equation for area?

A

force / pressure

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16
Q

what is the triangle for force, pressure and area?

A

F

P A

17
Q

How do you find the distance in a velocity time graph?

A

Area under the graph

18
Q

How do you work out the average speed of a velocity time graph?

A

total time on the graph

19
Q

What does this symbol represent < ?

A

Less than

20
Q

What does this symbol represent > ?

A

More than

21
Q

What does this symbol represent ≥ ?

A

More than/ equal to

22
Q

What does this symbol represent ≤ ?

A

Less than/ equal to

23
Q

If multiply/ divide across an inequality by a negative number, you…

A

Flip the sign

24
Q

What is the quadratic equation?

A

x=-b±√b²-4ac divided by 2a

25
Q

Sin x

A

O divided H

26
Q

Cos x

A

A divided H

27
Q

Tan x

A

O dived A

Year 9 - Maths (1 decks)

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