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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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surds
number
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binary
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sum to infinity
axes
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probability
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probabilty
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angles
folding tube maps
grids
perfect numbers
time
differentiation
calculus
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cryptic crossnumbers
expansions
geometry
crossnumbers
colouring
means
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ave
spheres
products
arrows
perimeter
percentages
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averages
consecutive numbers
taxicab geometry
sequences
pentagons
algebra
multiples
division
advent
doubling
palindromes
matrices
addition
volume
median
people maths
trigonometry
digits
consecutive integers
the only crossnumber
gerrymandering
crosswords
coordinates
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integration
graphs
square numbers
integers
dominos
irreducible numbers
proportion
rectangles
partitions
even numbers
clocks
geometric means
polynomials
albgebra
circles
mean
factors
odd numbers
sport
games
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star numbers
dodecagons
tiling
digital clocks
floors
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rugby
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