48 results authored by Ida Landgärds - search across all users.

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• spørsmål 4
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Add, subtract, multiply and divide algebraic fractions.

• spørsmål 2
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• spørsmål 1
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• spørsmål 3
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• Spørsmål 4
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Given the original price of a smartphone and the rate at which it decreases, calculate its price after a given number of months. In the second part, calculate the time remaining until the price goes below a certain point.

• Question

Add, subtract, multiply and divide algebraic fractions.

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• spørsmål 1
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• spørsmål 6
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This question tests the students ability to factorise simple quadratic equations (where the coefficient of the x^2 term is 1) and use the factorised equation to solve the equation when it is equal to 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 positive gradient.

• Spørsmål 2
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Match up equations with the corresponding lines on a graph.

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• spørsmål 2
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Rearrange some expressions involving logarithms by applying the relation $\log_b(a) = c \iff a = b^c$.

• Spørsmål 1
Draft
Question

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.

• spørsmål 3
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Use laws for addition and subtraction of logarithms to simplify a given logarithmic expression to an arbitrary base.

• spørsmål 2
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• spørsmål 3
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• spørsmål 5
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Use the rule $\log_a(n^b) = b\log_a(n)$ to rearrange some expressions.

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Rearrange some expressions involving logarithms by applying the relation $\log_b(a) = c \iff a = b^c$.

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Express $\log_a(x^{c}y^{d})$ in terms of $\log_a(x)$ and $\log_a(y)$. Find $q(x)$ such that $\frac{f}{g}\log_a(x)+\log_a(rx+s)-\log_a(x^{1/t})=\log_a(q(x))$

• spørsmål 3
Has some problems
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• spørsmål 2
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• spørsmål 1
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• Question

This question tests the students ability to factorise simple quadratic equations (where the coefficient of the x^2 term is 1) and use the factorised equation to solve the equation when it is equal to 0.

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Add, subtract, multiply and divide algebraic fractions.

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No description given

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A basic introduction to differentiation