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Find the equation of the tangent line to the graph of y=2x^4-7x^3+x^2+3x when x=5

y=-13x+12
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Answered by Zyra A. • Maths tutor
3906 Views

how do you find the equation of a line perpendicular to another line at a point?

The gradient of the perpendicular line is the negative reciprocal of the gradient of the original line. For example if the gradient of the original line is 4, the gradient of the perpendicular line is -1/4. ...
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Answered by Frankie G. • Maths tutor
3575 Views

What is Pythagoras' Theorem for finding the length of a side of a triangle?

Pythagoras' Theorem can only be used on right angle triangles. To find the length of side a, the theorem can be used as follows: a 2 =h 2 -b 2 Taking the square root of the right-hand side of the equation wi...
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Answered by Eloise S. • Maths tutor
3233 Views

Find the differential of f(x)=y where y=3x^2+2x+4. Hence find the coordinates of the minimum point of f(x)

The differential of f( x ) is f'( x )=6 x +2 because we apply this basic formula: the differential of k x n = kn x n-1 where k is a constant.This is a positive quadratic, so it has a U shape that is above th...
Answered by • Maths tutor
3717 Views

Factorise x^2 + 5x + 6

Firstly, look at the number in front of the x term. This is 5Then look at the number at the end without an x term. This is 6.What 2 numbers would add to make 5, and multiply to make 6?? + ? = 5 ? x ?=6This w...
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Answered by Ravneet M. • Maths tutor
3602 Views