REVIEW THESE BITS Flashcards

1
Q

Slope

A

Slope describes the steepness or incline of a line between two points.

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2
Q

Distance

A

Distance measures the length of the straight line connecting two points.

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3
Q

Pythagoras Theorem

A

A special rule for right triangles, saying that if you square the longest side (the hypotenuse), it’s equal to the sum of the squares of the other two sides. It helps figure out distances in these kinds of triangles.

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4
Q

Parallel Lines

A

Have the same slope

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5
Q

Perpendicular Lines

A

Opposite reciprocal slope (ex: if slope is 2 then the reciprocal slope is -1/2)

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6
Q

Radius

A

The radius of a circle is the distance from its center to any point on the circle

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7
Q

Finding Vertex Using Standard Form

A

(-b/2a,f(-b/2a))
x is -b/2a
y is f(-b/2a)

DON’T FACTOR

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8
Q

Finding Vertex Using Vertex Form

A

a(x-h)^2 + k

(h,k) are the vertex

to find the original h or ‘x’ look at the sign in front of h, if it’s negative then h is positive and if it it’s positive then h is negative

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9
Q

Vertex

A

The vertex represents the minimum (or maximum) value of the quadratic function.

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10
Q

Minimum

A

When the graph is positive (goes upwards)

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11
Q

Maximum

A

When the graph is negative (goes downwards)

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12
Q

sine

A

soh = opposite/hypotenuse

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13
Q

cosine

A

cah = adjacent/hypotenuse

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14
Q

tangent/TOA

A

tan = opposite/adjacent

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15
Q

x^0

A

1

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16
Q

x^1

A

x

ex: 3^1 = 3

17
Q

a^-x

A

1/(a^x)

ex: 3^-2 = 1/(3^2)
=1/9

18
Q

a^m/n

A

n √a^m

ex: 3^2/3 = 3 √3^2