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3. The y-intercept of which of the following equations is 5?4x - 5y = 304x - 6y = 304x + 5y = 304x + 6y = 30

User Scusyxx
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1 Answer

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Answer

Option D is the equation whose y-intercept is 5.

4x + 6y = 30

Step-by-step explanation

The slope and y-intercept form of the equation of a straight line is given as

y = mx + b

where

y = y-coordinate of a point on the line.

m = slope of the line.

x = x-coordinate of the point on the line whose y-coordinate is y.

b = y-intercept of the line.

So, we just need to express the given equation of different lines in the standard form and obtain our b

Option A

4x - 5y = 30

-5y = -4x + 30

Divide through by -5

y = 0.8x - 6

b = y-intercept = -6

Option B

4x - 6y = 30

-6y = -4x + 30

Divide through by -6

y = -0.667x - 5

b = y-intercept = -5

Option C

4x + 5y = 30

5y = -4x + 30

Divide through by 5

y = -0.8x + 6

b = y-intercept = 6

Option D

4x + 6y = 30

6y = -4x + 30

Divide through by 6

y = -0.667x + 5

b = y-intercept = 5

Hope this Helps!!!

User Mukesh Kumar Singh
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