SOLUTION: Hello, Can someone show me how to Identify the Y intercept on these questions? thanks a bunch! y = 2x -1 y = -3/2x 2x + 8 = y =5 2x

SOLUTION: Hello, Can someone show me how to Identify the Y intercept on these questions? thanks a bunch! y = 2x -1 y = -3/2x 2x + 8 = y =5 2x - 4y = 8 2x-y =3

Question 20393: Hello, Can someone show me how to Identify the Y intercept on these questions?
thanks a bunch!
y = 2x -1
y = -3/2x
2x + 8 =
y =5
2x - 4y = 8
2x-y =3
Answer by wuwei96815(245) (Show Source): You can put this solution on YOUR website!
The formula that you want to keep in mind is y=mx+b. In this formula y and x are variables and m and b are constants. Specifically, m=slope of the line generated by the formula and b=the y-intercept.

Let's examine the first equation:
y=2x-1
It is readily obvious that the y-intercept is -1.

The second formula:
y=-3/2x
Although the answer is not as obvious as the first formula, we can see from an examination that the y-intercept is 0.

To solve the remaining formulas, try putting them into the y=mx+b form and then solve for b.
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