mscroggs
.co.uk
mscroggs
.co.uk
blog
puzzles
academic
talks
contact
subscribe
↓ ☰ ↓
subscribe
Loading image...
Advent calendar 2021
23 December
All 2021 advent puzzles
~
More information
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?
Show answer
Hide answer
The line will meet the \(y\)-axis at y=
102
.
Tags:
graphs
,
parabolas
,
lines
,
axes
Archive
Show me a random puzzle
Most recent collections
Advent calendar 2025
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
List of all puzzles
Tags
christmas
routes
number
integration
fractions
people maths
spheres
probability
indices
proportion
tiling
circles
area
geometry
balancing
money
digits
square numbers
square roots
geometric means
axes
decahedra
factors
dice
speed
dodecagons
chess
even numbers
functions
factorials
gerrymandering
dates
sport
tournaments
crosswords
menace
expansions
polygons
books
combinatorics
prime factors
sequences
matrices
crossnumbers
chocolate
digital clocks
parabolas
algebra
coins
the only crossnumber
volume
addition
dominos
advent
ave
star numbers
integers
cubics
multiplication
sum to infinity
consecutive numbers
numbers
squares
geometric mean
neighbours
tangents
3d shapes
rugby
2d shapes
logic
doubling
multiples
digital products
shape
albgebra
products
mean
symmetry
cryptic clues
lines
odd numbers
folding tube maps
cube numbers
determinants
lists
median
trigonometry
surds
percentages
pascal's triangle
sets
calculus
hexagons
time
colouring
triangles
wordplay
binary
irreducible numbers
medians
planes
regular shapes
sums
arrows
clocks
means
grids
multiplaction squares
chalkdust crossnumber
division
palindromes
quadrilaterals
polynomials
shapes
coordinates
cryptic crossnumbers
square grids
games
prime numbers
powers
remainders
scales
probabilty
complex numbers
quadratics
pentagons
perimeter
taxicab geometry
averages
floors
consecutive integers
unit fractions
rectangles
triangle numbers
graphs
cards
elections
angles
xor
bases
differentiation
perfect numbers
ellipses
range
partitions
Archive
Show me a random puzzle
▼ show ▼
▲ hide ▲
Most recent collections
Advent calendar 2025
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
List of all puzzles
Tags
division
geometry
probability
calculus
xor
grids
colouring
routes
integers
cards
mean
parabolas
multiples
chess
perimeter
polynomials
2d shapes
tiling
digital clocks
matrices
quadrilaterals
differentiation
perfect numbers
clocks
factorials
dodecagons
advent
cube numbers
floors
percentages
addition
remainders
indices
chalkdust crossnumber
probabilty
prime factors
christmas
shapes
speed
unit fractions
the only crossnumber
functions
axes
angles
powers
ave
decahedra
combinatorics
dates
sport
surds
menace
tournaments
shape
rectangles
digits
even numbers
means
tangents
books
bases
squares
folding tube maps
geometric means
logic
crosswords
expansions
area
circles
medians
symmetry
dice
arrows
regular shapes
quadratics
games
square roots
products
wordplay
people maths
taxicab geometry
range
dominos
trigonometry
graphs
crossnumbers
hexagons
volume
consecutive numbers
median
square grids
multiplication
balancing
square numbers
neighbours
consecutive integers
ellipses
lines
proportion
scales
time
pascal's triangle
pentagons
odd numbers
digital products
binary
multiplaction squares
integration
numbers
chocolate
cryptic crossnumbers
rugby
albgebra
coins
gerrymandering
star numbers
sequences
3d shapes
fractions
sets
cryptic clues
money
cubics
prime numbers
elections
doubling
planes
polygons
coordinates
complex numbers
sum to infinity
factors
palindromes
determinants
irreducible numbers
triangle numbers
number
geometric mean
spheres
averages
partitions
lists
triangles
algebra
sums
© Matthew Scroggs 2012–2026