Questions on linear programming techniques, with interactive graphics.

Straightforward solving linear equations question.

Adapted from 'Simultaneous equations by elimination 1 with parts' by Joshua Boddy.

Straightforward solving linear equations question.

Adapted from 'Simultaneous equations by elimination 1 with parts' by Joshua Boddy.

(Green’s theorem). $\Gamma$ a rectangle, find: $\displaystyle \oint_{\Gamma} \left(ax^2-by \right)\;dx+\left(cy^2+px\right)\;dy$.

Given a PDF $f(x)$ on the real line with unknown parameter $t$ and three random observations, find log-likelihood and MLE $\hat{t}$ for $t$. 

Reading information from the equation of the line. Graph shown

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Reading information from the equation of the line. Graph shown

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Finding x and y values for straight line graphs

(Green’s theorem). $\Gamma$ a rectangle, find: $\displaystyle \oint_{\Gamma} \left(ax^2-by \right)\;dx+\left(cy^2+px\right)\;dy$.

Reading information from the equation of the line. Graph shown

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Reading information from the equation of the line. Graph shown

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Practice finding parallel and perpendicular lines to a given line.

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Coordinate Geometry of the line. Equations of lines.

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Identifying straight-line equations, and correlations.

Looking at gradients and values for x and y for straight-line graphs

Completing a table of x and y values from a straight line graph equation.

Data type for line graph

Simple Linear Equations involving basic transposition.

Identifying the gradient from a straight-line graph equation y=mx+c

There are copious comments in the definition of the function eqnline about the voodoo needed to have a JSXGraph diagram interact with the input box for a part.

A set of MCQ designed to help Level 2 Engineering students prepare/practice for the on-line GOLA test that is used to assess the C&G 2850, Level 2 Engineering, Unit 202: Engineering Principles.

Solving a system of three linear equations in 3 unknowns using Gauss Elimination in 4 stages. Solutions are all integral.

Find a regression equation.

Shows how to define variables to stop degenerate examples.

This question asks a student to draw a straight line graph by dragging points.

Simple Linear Equations involving Basic Transposition

Factorising further basic quadratics into linear factors.

Expansion of two brackets

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Expand $(ax+b)(cx+d)$.

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Word Problems leading to simultaneous Linear Equations

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