C1

Ruth Hyndman
Flashcards by Ruth Hyndman, updated more than 1 year ago
Ruth Hyndman
Created by Ruth Hyndman over 4 years ago
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Flipcards, C1, CCEA exam board, AS level
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Question Answer
Reciprocal graphs e.g. y = 1 / x
Reciprocal-square graphs e.g. y = 1 / x^2
Reciprocal-square graphs y = 1 / x^2
Straight line graphs e.g. y = x
Straight line graphs y = x
Quadratic graphs e.g. y = x^2
Cubic graphs e.g. y = x^3 - x
Quadratic graphs y = x^2
f(2x) Stretch by a factor of 0.5 horizontally (Shrink by half)
Cubic graphs y = x^3 - x
f(0.5x) Stretch by a factor of 2 horizontally
Bad guy x lives in bracket prison, whatever you tell him to do he does the opposite. Good guy y lives outside bracket prison and does what he's told.
f(x + 2) Move 2 to the left
f(2x) You: "Stretch twice as wide!" X: "No." X: *becomes half as wide*
f(x - 2) Move 2 to the right
f(0.5x) You: "Shrink to half your size!" X: "No." X: *becomes twice as wide*
f(-x) Flip in the y axis
f(x+2) You: "Move 2 to the right!" X: "No." X: *Moves 2 to the left*
f(x-2) You: "Move 2 to the left!" X: "No." X: *Moves 2 to the right*
The only thing x does right is this: f(-x) because he can't do anything else You: "Flip sideways!" X: "..." X: *Flips sideways*
2f(x) You: "Stretch up high!" Y: "Okay, how high? 2? Got it." Y: *Stretches up by 2*
0.5f(x) You: "Compress down!" Y: "Okay, by how much? Half? Got it." Y: *Compresses down*
f(x)+2 f(x)-2 You: "Move 2 to the left!" Y: "Okay, by how much? Half? Got it." Y: *Compresses down*
2f(x) Stretch by a factor of 2 vertically
0.5f(x) Stretch by a factor of 0.5
f(x) + 2 Move 2 upwards
f(x) - 2 Move 2 downwards
-f(x) Flip in the x axis
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