77 results.
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Question in Graphing and Polynomials
Identifying y=mx+b given two points
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Question in Graphing and Polynomials
Given the graph of the line determine the equation of the line.
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Question in Martin's workspace
This question plots a general amplitude modulated carrier signal defined by vs(t)=(VDC+Vmcos(2πfmt))cos(2πfct), where VDC is a DC offset, Vm is the message amplitude, fm is the message frequency and fc is the carrier frequency (fc=20fm in this question). The student must identify the values of VDC and Vm and enter these values into the appropriate gaps in the equation of the AM signal.
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Question in Martin's workspace
No description given
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Question in Martin's workspace
No description given
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Question in Trigonometry
No description given
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Question in Deactivated user's workspace
Students enter equation and turning point
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Question in Deactivated user's workspace
Students enter equation and turning point
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Question in Deactivated user's workspace
Compute a table of values for a quadratic function. A JSXgraph (the graph paper) plot shows the curve going through the entered values.
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Question in Deactivated user's workspace
Compute a table of values for a quadratic function. A JSXgraph (the graph paper) plot shows the curve going through the entered values. The student input is now disconnected from the graph so that they slide the points usually after they input the values and the answer fields are not updated.
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Question in Panamaconferentie
1) Schrijf een modeloplossing. Houd rekening dat je bij randomisatie dit anders zal moeten schrijven.
2) Randomiseer de snelheid, en controleer welke effecten dat heeft op de andere variabelen.
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Question in Trigonometry
No description given
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Question in Trigonometry
No description given
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Question in Trigonometry
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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Question in Trigonometry
No description given
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Question in Trigonometry
No description given
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Question in Trigonometry
No description given
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Question in Christian'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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Question in Demos
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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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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Question in Julie's workspace
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 Julie'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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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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Question in Bill's workspace
Solve for x(t), dxdt=a(x+b)n,x(0)=0
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Question in How-tos
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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Question in Tony'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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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.
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Question in David's workspace
Compute a table of values for a quadratic function. Calculate the slope and intercept of a line.
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Question in AP's workspace
Compute a table of values for a quadratic function. A JSXgraph (the graph paper) plot shows the curve going through the entered values. The student input is now disconnected from the graph so that they slide the points usually after they input the values and the answer fields are not updated.