TOPICS
This page:
graphing equations
Search
Dr. Math
Internet Library:
graphing equations
MIDDLE SCHOOL
About Math
Algebra
equations
factoring expressions
graphing equations
Arithmetic
division
exponents
factorials
factoring numbers
fractions/percents
logarithms
Definitions
Geometry
2dimensional
conic sections/
circles
triangles/polygons
3D and higher
polyhedra
History/Biography
Logic
Measurement
calendars/
dates/time
temperature
terms/units
Number Sense
factoring numbers
negative numbers
pi
prime numbers
square roots
Probability
Puzzles
Ratio/Proportion
Statistics
Word Problems

Browse Middle School Graphing Equations
Stars indicate particularly interesting answers or
good places to begin browsing.
Selected answers to common questions:
Direct and indirect variation.
Slope, slopeintercept, standard form.
 Equation of a Line Parallel to an Axis [06/19/2003]

How can I get the equation of a line if the line passes through a
point and is parallel to the x or yaxis?
 Equations of a Line given Two Points [8/31/1996]

How do you find the equation of a line going through two points if you
only know the two points?
 Geometric Objects and Properties using Algebra [06/29/1998]

Why does y = mx+b, and what does it mean?
 Graphing a Parabola [12/15/1994]

How do I graph a parabola (without a calculator)?
 Graphing Coordinates [1/15/1997]

How can you tell if you have a straight line just by looking at the
numbers?
 Line of Best Fit [07/08/2003]

I am looking for help in how to manually find the slope and intercept
of this problem.
 Nomographs [06/12/2003]

What are nomographs used for? How does one use them? Are they still in
use? and last but not least, How are they constructed?
 No Solution, Infinite Solutions [01/03/2002]

Solve: 8(2x3) = 4(4x8); 3(x3) is greater than or equal to 53x.
 Please graph and send the solution for: [5/23/1995]

(x^2 + y^2)/2 = 0
 Slope Angle [06/17/2003]

What units do we use to refer to slope?
 Undefined Slope and Zero Slope [04/11/1997]

What is the difference between an undefined slope and a slope of zero?
 Absolute Value Graphs [11/16/2002]

Graphing inequalities: finding an equation, graphing it, and finding
its vertices.
 Changing Equations To SlopeIntercept Form [07/17/1998]

Can you explain how to change equations into slopeintercept form? For
example, 12(2x1)  5(3y+2) = 8?
 Deriving the Quadratic Formula [10/15/1998]

How do you derive the quadratic formula from ax^2 + bx + c = 0?
 Direct and Indirect Variation [07/09/1998]

Can you explain the difference between direct and indirect variation? How
would you interpret them in a word problem?
 Drawing a Line, Given the Slope and One Point [05/23/2002]

How do I draw a line on a graph when I know the slope and the
location of only one point on the line?
 Drawing Equations on the Number Line [05/09/2002]

How can I draw an equation like 2  (5) = 7 on a number line?
 Finding the Equation of a Line [01/08/1997]

Given either a point and a slope or two points, how do you find the
equation of a line in both pointslope and standard form?
 Finding the Equation of a Line [2/2/1996]

Find the value of k and m if the straight line y = kx + m passes through
the point (2,5) and has a gradient of 4.
 Finding the Table's Diameter [05/05/2001]

A circular table is pushed into the corner of a room so that it touches
both walls. On the edge of the table is a scratch 8" from one wall and 9"
from the other wall. What is the diameter of the table?
 Finding yintercepts [6/12/1996]

I'm having a problem with finding and graphing yintercepts of linear
equations.
 Graphing Inequalities [10/16/1998]

Could you explain to me how to graph inequalities that use variables,
such as x < 2? Where do you shade? Is the line dotted or solid?
 Graphing Inequalities [06/05/2003]

How do you graph y + 4x is less than 20 ?
 Graphing Intercepts [11/06/1997]

How would I find the intercept for a problem such as 3x2y = 12?
 Graphing Linear Equations [12/26/2001]

Give the intercepts of 7x  2y = 2.
 Graphing Systems of Equations [06/01/1998]

How do you solve this system of equations by graphing: 3x + 2y = 5 and 
3x  2y = 10?
 Graphing without the Y [01/28/2004]

I'm trying to graph the inequality x > 5, but without a y, how can I
graph it?
 Graphing y = mx + b [01/20/1997]

After you get 3 x+ 2y = 5 into y = mx + b form, how do you graph it?
 Height and Weight [10/30/1996]

How do you find a formula that predicts a person's weight when all you
know is his/her height?
 Hidden in xy Plane Sight [11/29/2011]

A student wonders why x = 4 represents a vertical line. Using several twovariable examples in standard form, Doctor Ian builds up an explanation — and reveals a hidden implication: that singlevariable equation actually contains a second variable with coefficient zero.
 How to Draw Linear Equations [06/07/1999]

How would I draw the line y = (2/3)x + 5?
 Inequalities on a Number Line [05/07/2003]

How do you graph inequalities on a number line?
 Infinity and Inequalities [06/05/2002]

I'm supposed to use positive and negative infinity to solve problems
like 2x  3 < 7.
 Intercept Equation [10/07/1998]

I found a plane using the intercepts (4,0,0), (0,5,0), and (0,0,3). Now
I want an equation for those points using Ax + By + Cz = D.
 Introduction to Quadrants in the Coordinate Plane [02/05/2004]

What is a quadrant? How do you find it? I had to identify 9 ordered
pairs on a graph. Now I need to also name the quadrant each one is in.
 Is It Really Possible to Draw a Graph? [02/01/2007]

Since graphs are collections of points, and points have no dimensions
(depth, length, height), we can't really draw a graph. All we can do
is make a "representative graph". Is that right?
 Line of Best Fit [8/1/1996]

Are a bestfit line, a line of best fit, and a fitted line synonymous?
 Multiplying or Dividing by a Negative Number [04/08/1999]

When x(x4) is less than 0...
 Nonparallel Glide Reflections [10/21/1998]

A glide reflection consists of a line reflection and a translation
parallel to the reflection. What if the translation is not parallel to
the reflection?
 Order of Quadrant Numbers [10/21/2002]

Why are quadrants numbered that way?
Page: 1
2
[next>]
