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L1: y=3x-2 & L2: 3y-9x+5=0, show these two lines are parallel

L1: y=3x-2L2: 3y-9x+5=0 3y=9x-5 y=3x-5/3standard form of a linear line, y=mx+c where m is the gradient. Gradient in both equations is 3 therefore they are parallel

Answered by Faaruq M. • Maths tutor

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Solve 4(3x – 2) = 2x – 5

First, multiply out the bracket on the left hand side. Then move the numbers (without "x's") to the right hand side. After that, move all the x values to the left hand side. Finally, divide both...

Answered by Tutor199719 D. • Maths tutor

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Solve the inequality 2(2x − 4) > 28

2(2x-4)>28In this question we want the get the x on it's own so we need to remove everything beside it.So we multiply out the brackets 2(2x-4) = 4x-8So then we have 4x-8>28.Then we move the 8 to the...

Answered by Rebecca S. • Maths tutor

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Find ∫((x^2−2)(x^2+2)/x^2) dx, x≠0

Before we start any integration steps it would be wise to try and simplify the fraction that we have been given. We want to get rid of that denominator so we will start by expanding out the numerator. Thi...

Answered by Anthony S. • Maths tutor

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If you are given the function f(x) = 10-3x and g(x) = (x-3)/2 , find the value of the composite function gf(4) ?

The composite function can be thought of as if the function f(x) is the variable for the function g(x) instead of x. So first you find the value of the function f(4),f(4) = 10 - (3x4) = 10 - 12 ...

Answered by Hajerah L. • Maths tutor

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