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The price of a pencil grows by 1%. What is the final crice if the initial price was £1?

1*1/100+1= 1.001

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What is the gradient of the graph y = 3x^2 + 5x + 2, when x is 4?

To find the gradient of the graph, we need to differentiate the equation. So if y = xⁿ ==> the derivative dy/dx = nx^n-1 This means that dy/dx = 6x + 5 for this eq...

Answered by Rishabh H. • Maths tutor

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What is the difference between the median and the mean values for this set of data: 11, 9, 21, 6, 18, 2, 17, 8, 7.

Median: Reorder the data in numerical order, then select the value that lies directly in the middle of the data line - if there is an odd number of data, the median value is the middle number and if there...

Answered by James M. • Maths tutor

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y=mx+c. If m=5, x= -3 and c=1, find y

First off multiply m and x together. This is -3*5 = -15. Next, add c to the previous result, so -15+1=-14. This gives y=-14

Answered by Kamaal K. • Maths tutor

3142 Views

(i) Find the point(s) where the curve y=x^2-2x+1 crosses the x-axis, and (ii) find the coordinates of the vertex of the curve.

(i) Recall that a curve crosses the x-axis (the horizontal axis) when the vertical y-coordinate is zero, so we are required to find all the points such that y=0, that is we must solve the equation x^2...

Answered by Ethan T. • Maths tutor

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