Math

posted by Kimbo

What is the equation of the line that passes through all the points in the table?

x -4 -2 0 2
y 0 -4 -8 -12

A. y= -2x-8
B. y= -2x-4
C. y= -4x-8
D. y= -4x-4
PLEASE EXPLAIN PLZZ

  1. Jai

    Take two points from the given. For instance the first two points (-4,0) and (-2,-4).

    Get the slope using the formula,
    m = (y2 - y1) / (x2 - x1)
    where
    (x1,y1) and (x2,y2) are points on the line.
    Substituting,
    m = (0 - (-4)) / (-4 - (-2))
    m = (0 + 4) / (-4 + 2)
    m = 4 / -2
    m = -2
    Finally substitute the slope and a point in slope-intercept form of equation:
    y - y1 = m(x - x1)
    y - 0 = -2(x - (-4))
    y = -2(x + 4)
    y = -2x - 8

    hope this helps~ `u`

  2. Kimbo

    THANK YOU SM JAI

Respond to this Question

First Name

Your Answer

Similar Questions

  1. Math 101

    Find the equation for each of the following items below: a. A line that passes through (6,26) and has a slope of 3. b. A line that passes though the points (5,5) and (10,20) c. A line that passes through (9,25) and has a slope of -3. …
  2. Math

    This question concerns the straight line that passes through the points (−1, 3) and (2, −6). Choose the three true statements from the following. Options A The gradient of the line is 3. B The gradient of the line is −3. …
  3. Mathamatics

    This question concerns the straight line that passes through the points (−1, 3) and (2, −6). Choose the three true statements from the following. Options A) The gradient of the line is 3. B) The gradient of the line is …
  4. mat 101

    Equation for a line that passes through (6,26) and has a slope of 3 Equation for a line that passes through the points (5,5) and (10,20) Equation for a line that passes through (9,25) and has a slope of -3. Equation for a line that …
  5. Maths

    Hi, need a bit of help on this one. A straight line passes through the points (4,3) and (10,0), I need to write down the equation of the line in the form y=mx+c, I have tried but I cant seem to get the second coordinates to satisfy …
  6. Algebra

    1. What is the equation for the line that passes through the point (-5,2) and has a slope of 0?
  7. Math

    Line A passes the points (-5,-13) and (1,-1). Line B runs perpendicular to Line A and passes the points (6,5). Find the equation of each line.
  8. Math

    What is the y-intercept of y = 2/3x + 2? I have to write it out but how?
  9. Math please.

    What is the y-intercept of y = 2/3x + 2? I have to write it out but how?
  10. Mathematics

    Can someone check my answers? 1. For the data in the table, does y vary directly with X?

More Similar Questions