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Advent calendar 2021
23 December
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I draw the parabola \(y=x^2\) and mark points on the parabola at \(x=17\) and \(x=-6\). I then draw a straight line connecting these two points.
At which value of \(y\) does this line intercept the \(y\)-axis?
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The line will meet the \(y\)-axis at y=
102
.
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List of all puzzles
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elections
shapes
axes
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digital products
trigonometry
probabilty
the only crossnumber
scales
integers
proportion
shape
people maths
functions
perimeter
geometric means
regular shapes
digits
albgebra
irreducible numbers
range
differentiation
rectangles
colouring
integration
coins
sets
bases
median
dates
products
triangle numbers
geometric mean
taxicab geometry
binary
cryptic crossnumbers
square roots
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christmas
expansions
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wordplay
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percentages
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books
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volume
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angles
balancing
games
rugby
quadrilaterals
chalkdust crossnumber
addition
digital clocks
cryptic clues
complex numbers
routes
polygons
decahedra
pascal's triangle
ave
dominos
calculus
3d shapes
indices
crossnumbers
prime numbers
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speed
numbers
time
graphs
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even numbers
ellipses
geometry
fractions
lines
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square numbers
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sport
arrows
multiples
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