mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2021

23 December

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

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2023

Advent calendar 2022

Advent calendar 2021

Advent calendar 2020


List of all puzzles

Tags

axes palindromes sum to infinity pentagons perimeter dominos 2d shapes shapes dice range dodecagons percentages tangents surds tiling pascal's triangle the only crossnumber trigonometry median speed sets clocks geometric mean routes taxicab geometry floors balancing sequences even numbers multiples squares partitions time colouring rugby cubics quadrilaterals probabilty indices elections folding tube maps coins division quadratics grids numbers determinants polynomials books factors christmas sport ellipses volume cards lines digits square roots doubling dates unit fractions expansions ave probability cryptic clues number hexagons spheres chalkdust crossnumber remainders functions proportion money cryptic crossnumbers combinatorics calculus logic geometric means square numbers parabolas area advent consecutive integers odd numbers graphs albgebra wordplay integers multiplication algebra shape addition crossnumber scales rectangles perfect numbers crosswords chocolate chess fractions averages triangles matrices regular shapes tournaments 3d shapes polygons crossnumbers planes mean symmetry menace circles consecutive numbers binary means differentiation gerrymandering complex numbers coordinates star numbers irreducible numbers arrows sums integration products digital clocks triangle numbers bases geometry angles prime numbers cube numbers digital products people maths games decahedra factorials

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2024