Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

SamuelAlden917

  • 3 years ago

If y varies directly with x and y = -7 when x = -1, find x when y = -84. Answer 84 7 -12

  • This Question is Closed
  1. DanL33
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    try dividing 84 by 7 to find the ratio

  2. SamuelAlden917
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    -12?

  3. DanL33
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    -84 divided by -7 equals +12 +12 is your ratio you need to put the x value you know into the ratio -1 times 12 equals -12 so thats the answer but you need to remember to use the ratio to find it otherwise you can end up with the wrong sign or if x had been 2 you would have a completly different answer.

  4. SamuelAlden917
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Write the slope-intercept form of the line which passes through (4, 2) with a slope of 1/2. Answer y = 1/2 x + 2 y = 1/2 x y = 1/2 x + 4

  5. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy