Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

mikaa_toxica13

  • one year ago

*help requested* *fan and medal awarded* Simplify 3x + 9 over 3 3x + 3 x + 3 x + 9 x What is the equation of the line that passes through the points (-2, 3) and (2, 7)? x - y = -1 x - y = -2 x - y = - 5 x - y = - 6 Evaluate: 18 + 4 ÷ 2 - 8 2 8 12 3

  • This Question is Closed
  1. Josuelito
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ummm the last one is 3, im still trying to find out the others

  2. jazy
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Divide each term separately\[\frac{ 3x + 9 }{ 3 }\]-----\[\frac{ 3x }{ 3 } = x\]\[\frac{ 9 }{ 3 } = 3\] x + 3

  3. jazy
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    2) Point-Slope form. y - y1 = m(x - x1) Find slope. (-2, 3) and (2, 7) \[m =\frac{ y2 - y1 }{ x2 - x1 }\]\[m = \frac{ 7 - 3 }{ 2 -(-2) } = \frac{ 7 - 3 }{ 2 + 2 } = \frac{ 4 }{ 4 } = 1\]Slope(m): 1 Point: (-2, 3) y - 3 = 1(x - (-2)) y - 3 = 1(x + 2) Change to Slope-intercept form. y = mx + b Distribute. y - 3 = x + 2 Add 3. y = x + 5 Change to standard form. Ax + By = C 'A' cannot be a negative or a fraction. y = x + 5 Subtract x from both sides. -x + y = 5 Multiply everything by -1. \[-1(-x + y = 5)\] x - y = -5 <-- Your answer. (:

  4. jazy
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    3) Use the order of operations: PEMDAS. - Parenthesis - Exponents - Multiplication/ Division - Addition/ Subtraction 18 + 4 ÷ 2 - 8 Divide 4 by 2. 18 + (4 ÷ 2) - 8 18 + 2 - 8 Add 18 and 2. 20 - 8 Subtract and Solve (:

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

    Search OpenStudy
    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.