math

y=mx+b

If b is did not cross the y intercept, for example, what would "b" be!?!?

Zero?

  1. 👍
  2. 👎
  3. 👁
  1. Don't really know what you are saying, but ...

    If there is no y-intercept, then you must have a vertical line, and the equation would not take the form
    y = mx + b
    To have a vertical line, the m , or the slope would be undefined, which is not a numerical value

    If b = 0, then your equation would be y = mx
    but you would still have a y-intercept, namely the origin.

    1. 👍
    2. 👎
  2. for example, if i graph (8,2) to (5,4), how would i write it in mx+b=y form?

    1. 👍
    2. 👎
  3. Would b be 2? i am so confused!

    1. 👍
    2. 👎
  4. first you need the slope m

    m = (4-2)/(5-8) = -2/3

    so y = (-2/3)x + b
    but (5,4) lies on it, (we could use (8,2) )
    4 = (-2/3)(5) + b
    4 = -10/3 + b
    b = 22/3

    y = (-2/3)x + 22/3

    I usually check my equation by using the point NOT used to find the equation.
    e.g. for (8,2)
    LS = 2
    RS = (-2/3)(8) + 22/3
    = -16/3 + 22/3
    = 6/3
    = 2
    = LS
    my answer is correct

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Algebra

    Determine the slope and y-intercept for the line that passes through the points (5, 5) and (−5, 1). Show your work. I found the slope its 2/5, but i don't know how to find the y-intercept. Can someone explain how to find the

  2. Math

    A Parabola has a vertex (-3,7) and one x intercept is -11. Find the other x intercept and the y intercept. How on earth do i do this

  3. Algerba

    Find slope and y-intercept of following equation y=-3 x -2 knowing the slope of intercept 5 formula is y=mx+b slope is m or -3 y=-3 or m (0) -2 m=slope 5 5 y-intercept = let x=o solve for y y=0-2 y=-2 You can tell by inspecting

  4. Math

    What are the intercepts of the graph of the equation 6x−1.5y=18 ? A. x-intercept: (0, 3) ; y-intercept: (–12, 0) B. x-intercept: (–3, 0) ; y-intercept: (0, 12) C. x-intercept: (–12, 0) ; y-intercept: (0, 3) D. x-intercept:

  1. Math-True OR False Please Help!

    True or False? If the inverse function of f exists, and the graph of f has a y-intercept, the y-intercept of f is an x-intercept of f^-1

  2. Mathematics

    For question 1 & 2, find the x- and y-intercept of the line. 1. -10x + 5y = 40 A. x-intercept is 5; y-intercept is -10 B. x-intercept is 8; y-intercept is -4 C. x-intercept is -10; y-intercept is 5 D. x-intercept is -4;

  3. math

    find a function y=ax^2+bx+c whose graph has an x-intercept of 1, a y-intercept of -2, and a tangent line with slope -1 at the y-intercept.

  4. math

    find the x and y intercept of the line x-6y=12 x intercept is 12; y intercept is -2*** x intercept is -6; y intercept is 1 x intercept is -2; y intercept is 12 x intercept is 1; y intercept is -6

  1. algebra 1

    Why Does A Poor Man Drink Coffee? use the and y-intercept to graph each equation below. The graph,if extended,will cross a latter. Print this in box that contains the number of that exercise. 1)-3x+2y=2 2)x-4y=8 3) 2x+y=-3

  2. Algebra

    A charity organization had to sell 18 tickets to their fundraiser just to cover necessary production costs. They sold each ticket for \$45. Let y represent the net profit (in dollars) when they have sold x tickets. Which of the

  3. Mathematics

    Determine the equation of a quadratic function that satisfies each set of conditions. a) x-intercepts 1 and -1, y-intercept 3 b) x-intercept 3, and passing through the point (1, -2) c) x-intercepts -1/2 and 2, y-intercept 4 Please

  4. Algebra: Check please!!!

    1. Find the x-intercept and the y-intercept of 8x - 2y = -24. a. x= -7, y= 2 b. x= -4, y= 14 c. x= -3, y= 12 d. x= -7, y= -2 answer: a 2. Find the x- and y- intercept of the line 2x + 3y = -18. a. x-intercept is 18, y-intercept is

You can view more similar questions or ask a new question.