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The equation of the line L1 is y = 3x – 2 The equation of the line L2 is 3y – 9x + 5 = 0 Show that these two lines are parallel.

L1 is in the form y=mx+c where m is the gradient, 3.L2 can be rewritten as 3y=9x-5, then y=3x-(5/3) to reach y=mx+c. So, the gradient of L2 is 3.Therefore, both lines are parallel.
JW
Answered by Joe W. • Maths tutor
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Usage of the Imperfect Tense and the Passé Composé.

A question which blights both GCSE and A Level students and becomes particularly relevant when doing translation work. The imperfect tense refers to actions that took place over a long period in the past, an...
EB
Answered by Elizabeth B. • French tutor
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Solve the simultaneous equations. 2x + y = 18, x−y=6

In this question, we are going to find the values of x and y from the equations above. To start off, we will number the equations:(1): 2x+y=18(2): x-y=6now we will add (1) to (2) as that will get ride of the...
RR
Answered by Ruby R. • Maths tutor
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Could you please explain the "vouvoiement" rule?

One aspect of the French language which can be confusing at first to non-native and especially English speakers is the formal use of the pronoun « vous » and its subsequent verb form. The « vous » form usual...
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Answered by Alice D. • French tutor
4619 Views

What is a good rule to find angles in a right angled triangle?

In any right angled triangle , for any angle:The sine of the angle = the length of the opposite side the length of the hypotenuseThe cosine of the angle = the length of the adjacent side the length of the hy...
SF
Answered by Shirley F. • Maths tutor
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