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anonymous

  • one year ago

The slope-intercept equation of a line is y = -7x - 2. What are the slope and y-intercept of the line? A.The slope is -7 and the y-intercept is (0, -2). B.The slope is -7 and the y-intercept is (0, 2). C.The slope is -2 and the y-intercept is (0, 7). D.The slope is -2 and the y-intercept is (0, -7).

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  1. anonymous
    • one year ago
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    c

  2. anonymous
    • one year ago
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    thx

  3. UsukiDoll
    • one year ago
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    hmm? we have the equation in the form of y=mx+b where m is the slope and b is the y-intercept

  4. UsukiDoll
    • one year ago
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    so if we're given y =-7x-2 and it's the slope intercept form of y=mx+b. What is m and what is b?

  5. UsukiDoll
    • one year ago
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    I will explain to you why it's NOT C If option C were to hold true, we would've gotten the equation y = -2x+7 The original equation, y =-7x-2 contains 2 negative numbers which is -7 and -2 Option C contains 1 positive number and 1 negative number which is -2 and 7

  6. anonymous
    • one year ago
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    wait wht

  7. UsukiDoll
    • one year ago
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    try this again. if we're given y =-7x-2 and it's the slope intercept form of y=mx+b. What is m and what is b?

  8. anonymous
    • one year ago
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    m is -7 and b is 2

  9. anonymous
    • one year ago
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    right?

  10. UsukiDoll
    • one year ago
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    the m is correct.. the b isn't because it's a negative number

  11. anonymous
    • one year ago
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    so -2

  12. UsukiDoll
    • one year ago
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    yes so m = -7 and b =-2 It makes sense because we were given y =-7x-2

  13. UsukiDoll
    • one year ago
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    m = slope and b = y-intercept therefore slope = -7 and y-intercept = -2

  14. anonymous
    • one year ago
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    so a

  15. UsukiDoll
    • one year ago
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    "A.The slope is -7 and the y-intercept is (0, -2)." correct

  16. anonymous
    • one year ago
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    thx can you help with one more

  17. UsukiDoll
    • one year ago
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    Be careful for those direct answer guys.. they are just doing it to gain medals and have no idea what they are doing. That previous user was lucky that it was the wrong answer. Had it been right, that user would've violated the Code of Conduct which is to never give direct answers and to guide users through the learning process. yeah sure.

  18. anonymous
    • one year ago
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    If two lines are parallel and one has a slope of 8, what is the slope of the other line?

  19. anonymous
    • one year ago
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    would it be the same

  20. anonymous
    • one year ago
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    A.8 B.-1/8 C.-8 D.1/8

  21. UsukiDoll
    • one year ago
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    parallel lines look like this |dw:1435670221421:dw| they don't intersect .

  22. anonymous
    • one year ago
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    ik so the slope would be 8

  23. UsukiDoll
    • one year ago
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    the slope is positive though. we are given that there are two parallel lines, but one of them has the slope of 8

  24. anonymous
    • one year ago
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    its either a or d

  25. anonymous
    • one year ago
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    wait its -8 :P

  26. UsukiDoll
    • one year ago
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    really? can you tell me why it's -8? I'm curious ^^

  27. UsukiDoll
    • one year ago
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    the problem is ... we are not given perpendicular lines.. we have 2 parallel lines

  28. anonymous
    • one year ago
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    so its not -8

  29. UsukiDoll
    • one year ago
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    for perpendicular lines we can flip the slope over. perpendicular slopes have opposite signs.

  30. anonymous
    • one year ago
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    soo for parallel the slope is the same

  31. UsukiDoll
    • one year ago
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    parallel means that the slopes are the same parallel lines are just lines that don't intersect. If I had 2 perpendicular lines I will be intersecting at some point

  32. anonymous
    • one year ago
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    so its a

  33. anonymous
    • one year ago
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    ??

  34. UsukiDoll
    • one year ago
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    sorry I was responding to another question . yes it will be the same . since the slope is 8 we have 8 :D

  35. anonymous
    • one year ago
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    thx

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