Question 92498: Find the y-intercept for the equation 2x+4y=20
Answer by bucky(2189)   (Show Source):
You can put this solution on YOUR website! You can solve this quite easily if you think about it. Ask yourself what the x value is
for any point on the y-axis. It may become clear that any point on the y-axis will have a
corresponding value of zero for x.
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So in this equation all you need to do is to set the value of x equal to zero and solve
for the corresponding value of y.
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The equation you were given is:
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2x + 4y = 20
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When you set x equal to zero, the term 2x becomes zero and therefore, it drops out. The
equation is then:
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4y = 20
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Solve for y by dividing both sides by 4 and you get:
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y = 20/4 = +5
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Therefore, the y intercept is the point (0, +5) and it is on the y-axis at a value of +5.
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Hope this clarifies the problem for you and helps you to see how to do the problem.
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