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Q: How can you tell from a linear equation which direction it goes without graphing the equation?

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A linear equation describes a line like 2x+1=y. If you were to graph that equation, then it would give you a line. A quadratic equation is like x^2+2x+1=y. Graphing this equation would give you a U shaped graph called a parabola.

By finding something who's behavior is represented by a linear function and graphing it.

No a linear equation are not the same as a linear function. The linear function is written as Ax+By=C. The linear equation is f{x}=m+b.

use a graphing calculator. chances are, it's not linear; it's probably got some high-degree function with non-whole number coefficients. i think you can download a free graphing calculator online.

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Related questions

They are the same.

rise over run.

For a linear I can see no advantage in the table method.

In an inequality, you have to shade a side of a line to see show if the possible answers are greater than or equal to it

They are alike in that you graph the lines in the same way, but they are different because you have to shade in one side of the line

table of values,x and y-intercept and slope and y-intercept

Without an equality sign it is not an equation but an expression

The question contains an expression, not an equation. An expression does not have a graph. Furthermore, even if it were an equation, its form suggests that it would be a linear equation and a linear equation does not open in any direction.

It depends on which calculator! If the data is linear, you can estimate the slope of the line and the y-intercept from graphing the data. By graphing the data, you will be able to tell if it forms a straight line or not.

Because the question is tautological. You are asking how something is the same as that very samne thing!

A linear equation describes a line like 2x+1=y. If you were to graph that equation, then it would give you a line. A quadratic equation is like x^2+2x+1=y. Graphing this equation would give you a U shaped graph called a parabola.

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