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|2x+1|=3|x-2|

x=1x=7

HK
Answered by Harry K. Maths tutor
3065 Views

(a)Show that the lines y=3x+7 and 2y–6x=8 are parallel. [3 marks] (b) Is the point (–5, –6) above, below or on the line y = 3x + 7 ? Do not use a graphical method. [2 marks] [Total 5 marks]

(a) The gradient of y=3x+7 is 3 and rearrange 2y–6x=8 to y=3x+4 to show the gradient of 2y–6x=8 is also(6÷2=) 3. Alternatively, choose a value for x and find y value for both lines (e.g. (0, 7) and (0, 4)...

II
Answered by Iman I. Maths tutor
5952 Views

What is an isotope?

Isotopes are elements that have the same number of protons as the standard example in the periodic table, but have a different amount of neutrons.An example of this is C-12, C-13 and C-14. C-12 is the sta...

AH
Answered by Antonia H. Chemistry tutor
2295 Views

What is Albert Bandura's Media Effects Theory?

Albert Bandura was a world famous psychologist. He created the 'Media Effects' theory which focuses on the idea that the media can directly 'implant' ideas into the mind of audiences. He also believed tha...

CR
36232 Views

How do I analyse an unseen poem?

It's important to begin by reading the poem through not just once, but a few times. This will help you become familiar with its form and content, and ensure that you haven't missed out or misinterpreted a...

FE
Answered by Florrie E. English tutor
1366 Views

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