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Agata [3.3K]
3 years ago
12

3x-y=7 into slope intercept form

Mathematics
2 answers:
Phantasy [73]3 years ago
3 0
3 * 5=15 
15-8=7
so 3 times what equal what , so the current number you have u subtract that number to the number you need it to equal

BigorU [14]3 years ago
3 0
Are you trying to graph it?

First you should get it to the main equation slope intercept form which is y=mx + b

3x-y=7
-y= -3x + 7
y=3x -7

The standard way for the slope intercept form is Ax+ By= C
3x -y=7

I'm not sure if I am doing this correctly but I hope this sort of helps
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Step-by-step explanation:

Check the options

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(c)\\\Rightarrow \dfrac{\sin 3x}{\sin x\cos x}=\dfrac{3\sin x-4\sin ^3x}{\sin x\cos x}\\\\\Rightarrow 3\sec x-4\sin ^2x\sec x\\\Rightarrow 3\sec x-4[1-\cos ^2x]\sec x\\\Rightarrow  3\sec x-4\sec x+4\cos x\\\Rightarrow 4\cos x-\sec x

(d)\\\Rightarrow \dfrac{\sin 3x-\sin x}{\cos 3x+\cos x}=\dfrac{2\cos [\frac{3x+x}{2}] \sin [\frac{3x-x}{2}]}{2\cos [\frac{3x+x}{2}]\cos [\frac{3x-x}{2}]}\\\\\Rightarrow \dfrac{2\cos 2x\sin x}{2\cos 2x\cos x}=\dfrac{\sin x}{\cos x}\\\\\Rightarrow \tan x

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