123 results.
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A right-angled triangle is displayed either pointing left or right with one of the other angles and one of the sides given. Use SOH CAH TOA to find the side indicated with an x.
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No description given
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Find the equation of a line given a point and a parallel line.
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No description given
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Find the equation of a line given a point and a parallel or perpendicular line.
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No description given
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Drag points on an axis to plot a linear graph (integer gradient and intercept only)
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Calculate the length of a line segment given two points
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Drag points on an axis to plot a linear graph (rational gradient and intercept)
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Question in HL10524 Questions
Gives a plot of a velocity-time graph using JSXgraph, and a description of the motion shown in the graph. The student is asked to calculate the acceleration at different stages of the motion, and the displacement at the end of the motion.
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No description given
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Compute a table of values for a quadratic function. A JSXgraph plot shows the curve going through the entered values.
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Customised for the Numbas demo exam
Motion under gravity. Object is projected vertically with initial velocity Vm/s. Find time to maximum height and the maximum height. Now includes an interactive plot.
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Find a regression equation given 12 months data on temperature and sales of a drink. Includes an interactive diagram for experimenting with fitting a regression line.
rebelmaths
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No description given
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No description given
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An applied example of the use of two points on a graph to develop a straight line function, then use the t estimate and predict. MCQ's are also used to develop student understanding of the uses of gradient and intercepts as well as the limitations of prediction.
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Question in Bill's workspace
The data is fitted by linear and quadratic regression. First, find a linear regression equation for the n data points, 20≤n≤35.
They then are shown that the quadratic regression is often a better fit as measured by SSE. Also users can experiment with fitting polynomials of higher degree.
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Given a graph of a line of the form y=ax+b where a and b are integers, find the equation of the line. The y-intercept is given.
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Method of undermined coefficients:
Solve: d2ydx2+2adydx+a2y=0,y(0)=c and y(1)=d. (Equal roots example). Includes an interactive plot.
rebelmaths
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Question in joshua's workspace
Given a graph of a line of the form y=ax+b where a and b are integers, find the equation of the line. The y-intercept is given.
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Use two points on a line graph to calculate the gradient and y-intercept and hence the equation of the straight line running through both points.
The answer box for the third part plots the function which allows the student to check their answer against the graph before submitting.
This particular example has a positive gradient.
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Use two points on a line graph to calculate the gradient and y-intercept and hence the equation of the straight line running through both points.
The answer box for the third part plots the function, which allows the student to check their answer against the graph before submitting.
This particular example has a 0 gradient.
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Drag points on a graph to the given Cartesian coordinates. There are points in each of the four quadrants and on each axis.
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Question in Bill's workspace
Solve for x(t), dxdt=a(x+b)n,x(0)=0
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Use two points on a line graph to calculate the gradient and y-intercept and hence the equation of the straight line running through both points.
The answer box for the third part plots the function which allows the student to check their answer against the graph before submitting.
This particular example has a negative gradient.
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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.
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Question in Yuriy's workspace
Compute a table of values for a quadratic function. A JSXgraph plot shows the curve going through the entered values.
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Find a regression equation given 12 months data on temperature and sales of a drink. Includes an interactive diagram for experimenting with fitting a regression line.
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Question in Bill's workspace
Given a population size and data on a test for a condition on that population, use a tabular approach to find the increase in risk after a positive test in which there is a small chance of a false positive i.e. the probability that the test is positive even though the condition is not present. See Advice for a graphical version.
