Linear Equation question

posted by .

Hello! quick question.
why the line y = -3 is a horizontal line.
describe how this line sits on the Cartesian (coordinate) plane.
I have tried a few thoughts on this. Firstly the horizontal sits on the y intercept. The graph y = b is a horizontal line. -3 is to the left of the origin which is 0. It follows the order of a number line. Negative numbers to the left and positive numbers to the right. This is all I have so far. Did I get close??
Your help is appreciated!!

  • Linear Equation question -

    If you followed a line that has a slant or slope, you'll notice that the
    x and y co-ordinate are both changing.
    If you followed a vertical line,only the y co-ordinate will change.If you
    followed a horizontal line, the x co-
    ordinate only will change. The y co-
    ordinate will be constant(y = c). Therefore, when x is constant,its' a
    vertical line; and when y is constant,
    its' a horizontal line.

    In your case, y = c = -3, and its' a hor. line. Since y is constant, it re-
    mains the same no matter what value
    you assign to x.

    Use the following points to graph the
    Eq.: y = -3.

    (-4 , -3) , (-2 , -3) , (0 , -3),
    (2 , -3).

    I hope this will help.

  • Linear Equation question -

    Thank you Henry

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Plz Help!Algebra!!!

    Choose the description of the graph of the equation x = -8 a. A horizontal line through the -8 b. A horizontal line through the 8 c. A vertical line through the -8 d. A vertical line through the 8 Grab a piece of graph paper (or just …
  2. REPOST!PLZ HELP!ALGEBRA!

    You give up too easily. How? I posted how to get the answer below at the original question. OK but I replied... As did I. Well...I replied...again... Maybe you do understand this for horizontal lines. If you interchange x with y, vertical
  3. Math 10

    1 more question.... how would I make this equation perpendicular?
  4. math

    how do you the equation of a line in a coordinate plane?
  5. Algebra

    Ok a few questions I want to check answers on - -x+4-9x+3¡Ý 7(x-2) -10x+7¡Ý7x-14 -10x-7x¡Ý7x-7x-14 -17x¡Ý-21 -17x/-17¡Ý-21/-17 x¡Ý21/17 or x¡Ü21/17 ?
  6. Geo Hons

    Okay heres the pic. There is a plane with points B,D, and E.those [oints are collinear in the plane. And also outside of the plane is points A, and C. and those points are collinear outside of the plane.thought Line AC intersect at …
  7. Math

    Okay heres the pic. There is a plane with points B,D, and E.those [oints are collinear in the plane. And also outside of the plane is points A, and C. and those points are collinear outside of the plane.thought Line AC intersect at …
  8. Geometry

    Okay heres the pic. There is a plane with points B,D, and E.those [oints are collinear in the plane. And also outside of the plane is points A, and C. and those points are collinear outside of the plane.thought Line AC intersect at …
  9. Physics

    ohh sorry, in my first question... A 15 kg box sits on a horizontal FORCE. the coefficient of static fricition between the box and the surface is 0.70. if a force P is exerted on the box at an angle directed 37 degrees below the horizontal, …
  10. Linear Algebra

    Last number from the sample test! A plane P passes by the coordinates: A(1,0,-7); B(-2,-1,0); C(0,0,-3) Using the equation of the line D: x= 7+12t, y= -1-6t, z= 2-2t, Find the equation of a line that's entirely part of the plane P …

More Similar Questions