The Shape of the Graph
Find the Constant
Practice
Relationship
Direct — y = kx
Direct with the square — y = kx²
Direct with the root — y = k√x
Inverse — y = k / x
Inverse square — y = k / x²
Constant k
12
Read off at x =
3
Known point: x =
3
Known point: y =
12
Predict y at x =
8
y against x
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Hint
How to think about it
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