Equations Flashcards by Tylar Powell

Q

Inverse Proportion

y=1/x

A

y=k/x

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Q

Equation of a straight line

A

y=mx+c

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Q

Pressure

A

Force/Area

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Q

Direct Proportion

y=x

A

y=kx

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Q

Speed

A

Distance/Time

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Q

SAS

A

two sides and the angle in between

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Q

RHS

A

right-angle, the hypotenuse and side all match up

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Q

Sine Rule (ANGLE)

A

Sine A/a = Sine B/b =

Sine C/c

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Q

fx

A

Frequency x Mid-point

(f) (x)

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Q

Area of a Non-Right Angled Triangle

A

1/2abSin(c)

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Q

Density

A

Mass/Volume

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Q

Volume of a Pyramid

A

1/3 x Base Area x Vertical Height

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Q

ASA

A

two angles and a corresponding side to match up

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Q

OR

A

+

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Q

AND

A

X

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Q

Length of Arc

A

x/360 x TT x D

Q

Area of a Trapezium

A

1/2(a+b)x h

Q

Circumference of a Semi-Circle

A

TT x D/2 + D

Q

Sine Rule (LENGTH)

A

a/Sin A = b/Sin B = c/Sin C

Q

Frequency (HISTOGRAMS)

A

Frequency Density x Class Width

= Area of Bar

Q

SSS

A

three sides are the same

Q

Frequency Density

A

Frequency/Class Width

Q

Gradient of a Straight Line

A

y2-y1/x2-x1

Q

Gradient of a Perpendicular Line

A

-1/m

Q

COS A

A

b2+c2-a2/2bc

Q

Surface Area of a Hemisphere

A

2TTr2 + TTr2

Q

Surface Area of a Cylinder

A

2TTrh + 2TTr2

Q

Area of a Sector

A

x/360 x TTr2

Q

Volume of a Hemisphere

A

2/3 TTr3

Q

Volume of a Cylinder

A

TTr2h

Q

Proportional to the Square of x

y=x2

A

y=kx2

Q

Surface Area of a Cone

A

TTrl + TTr2

Q

Cosine Rule

A

a2=b2+c2-2bcCosA