309 results for "formula".
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Question in Demos
The student is shown a plot of a mystery function. They can enter values of $x$ check, within the bounds of the plot.
They're asked to give the formula for the function, and then asked for its value at a very large value of $x$.
A plot of the student's function updates automatically as they type. Adaptive marking is used for the final part to award credit if the student gives the right value for their incorrect function.
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Question in MESH
The dimensions of a rectangle are given in m and cm. Compute the area or perimeter.
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Question in How-tos
The student is given a quadratic formula and asked to fill in a table of values of $f(x)$ for a given range of $x$.
The table uses the spreadsheet extension.
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Question in How-tos
The student is given a quadratic formula and asked to fill in a table of values of $f(x)$ for a given range of $x$.
There is also a plot of the points, which updates when the table is filled in, or the student can move the points to fill in the table.
The table uses the spreadsheet and JSXgraph extensions.
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Exam (19 questions) in HELM books
HELM Book 1.5 Formulae and substitution exercises.
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Question in HELM books
A difficult question that involves rearranging a complicated formula, then applying unit conversions to variable values, then evaluating the formula for the selected value. The variable values are randomised.
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Question in HELM books
Rearrange a linear formula au + bv + cw = d to make one of u,v,w the subject.
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Question in HELM books
Choice of 2 formulae. The first is a fraction of the form y=(r+x)(1-rx). The second is of the form y=sqrt[(1-x)/(1+x) ]. Rearrange to make x the subject.
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Question in HELM books
Rearrange a formula with a square root to make a variable under the root the subject.
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Question in HELM books
Rearrange a complex formula involving squares, square roots, fractions and additions. This is a fixed question with no randomisation.
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Question in HELM books
Rearrange a linear function in x and y to make y the subject. Line variables are randomised.
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Question in HELM books
Transpose PV=RT to make a random variable the subject.
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Question in HELM books
Given the formula for a cone or a cylinder, and values for r and h, find the volume.
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Question in HELM books
evaluate a function (4a)/(pi*b^2cd) given random values for a,b,c,d.
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Question in HELM books
Evaluate pi / (2r+s) given values for r and s (r>0, s positive or negative)
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Question in HELM books
evaluate sqrt(x/z) where x and z are random positive decimals.
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Question in HELM books
Compute P = 3/(QR) given values for Q and R.
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Question in HELM books
HELM Book 1.5.1: using formulae and substitution: task 1
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Question in Graphs and series
Given the original formula the student enters the transformed formula
Working 26_10_16
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Question in Graphs and series
Given the original formula the student enters the transformed formula
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Question in MASH Bath: Question Bank
Factorising a quadratic expression of the form $a^2x^2-b^2$ to $(ax+b)(ax-b)$, using the difference of two squares formula.
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Exam (4 questions) in LANTITE (Numeracy)
A quick practice set of problems for education students to take in preparation for their numeracy test.
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Exam (6 questions) in LANTITE (Numeracy)
A quick practice set of problems for education students to take in preparation for their numeracy test.
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Exam (7 questions) in Musa's workspace
LP: Formulating dual problems
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Question in Musa's workspace
Formulating duality problems
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Question in Musa's workspace
Formulating duality problems
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Question in Musa's workspace
Formulating duality problems
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Question in Musa's workspace
Formulating duality problems
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Question in Musa's workspace
Formulating duality problems
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Question in Musa's workspace
Formulating duality problems