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Lesechka [4]
3 years ago
10

Which line is perpendicular to the line y=-1/3x-2 and passes through point (1,4)

Mathematics
2 answers:
xxMikexx [17]3 years ago
4 0

Answer:

Option 3)  y = 3x+1

Step-by-step explanation:

<u><em>Given equation is:</em></u>

y = -\frac{1}{3} x -2

Perpendicular => <u><em>It will have a slope of negative reciprocal to this slope</em></u>

So the  ⊥ line has a slope = m =  3

Now,

Point = (x,y) = (1,4)

So, x = 1, y = 4

<u><em>Putting this in slope intercept form to get b</em></u>

=> y = mx+b

=> 4 = (3)(1) + b

=> b = 4-3

=> b = 1

<u><em>Now, Putting m and b in the slope intercept form to get the required equation:</em></u>

=> y = 3x+1

murzikaleks [220]3 years ago
4 0

Answer:

<h2>y=3x+1</h2>

Option C is the correct option.

Given that,

y =  -  \frac{1}{3} x - 2

Which is in the standard form

y = mx + c

where, m= slope

c=y- intercept

m1 =  -  \frac{1}{3}

Slope of perpendicular lines is the product of slope is -1.

m1.m2 =  - 1 \\  -  \frac{1}{3}  \times m2 =  - 1 \\ m2 =  \frac{ - 1}{ \frac{ - 1}{3} }  \\ m2 = 3

Then, y=3x+c------> equation (i)

(X,y)=(1,4) ---- given

c=4-3x

c=4-3(1)

c=4-3

c=1

Put this in equation (i) we get,

<h2>y=3x+1</h2>

This is the required equation of the line.

Hope this helps...

Good luck on your assignment..

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