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donnie1999

  • one year ago

HELLLLP ME PLEASE!!!!!! if a line with a slope of 4 crosses the y-axis at (0,1), what is the equation of the line?

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  1. anonymous
    • one year ago
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    Well when we write out the equation of the line, we look for 2 things. The slope and the y-intercept. The y-intercept is what the y value will be when x is 0. Are you with me so far?

  2. donnie1999
    • one year ago
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    Yes I guess

  3. anonymous
    • one year ago
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    So we are going to write it out in the form \[\large y=mx+b\] with m as the slope and b as the y-intercept. What do you think it would look like in this form?

  4. donnie1999
    • one year ago
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    y=m*0+b

  5. anonymous
    • one year ago
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    Well m is the slope. So it HAS to be 4, right?

  6. donnie1999
    • one year ago
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    ok so slope is 4 but im still confused

  7. anonymous
    • one year ago
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    Here, let's take out the b for a second. \[\large y=4x\] So what happens when you plug in 0 for x?

  8. anonymous
    • one year ago
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    Na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, Batman! Na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, Batman!

  9. donnie1999
    • one year ago
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    The choices are y-4x=1 y+4x=1 x-4y=1 x+4y=1

  10. donnie1999
    • one year ago
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    so is it y+4X=1

  11. anonymous
    • one year ago
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    Na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, Batman! Na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, Batman!

  12. donnie1999
    • one year ago
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    @LegendarySadist can you help me out some more

  13. anonymous
    • one year ago
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    Yes, sorry for the delay. So if we have \[\large y=4x\] what will we get if we plug in 0 for x?

  14. anonymous
    • one year ago
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    you get babies

  15. donnie1999
    • one year ago
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    just x right because 4*0=0

  16. anonymous
    • one year ago
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    Yes so \[\large y=4*0\\\large y=0\] So when x is 0, y is 1. That means our y-intercept is 1. So now that we know that, how would we write the equation?

  17. donnie1999
    • one year ago
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    y-4x=1

  18. anonymous
    • one year ago
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    Yes, that would be it. Good job :)

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