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A straight line. y=ax + b is called a linear relationship. y=ax2 + bx +c is called quadratic because the HIGHEST power of x is 2. A term with x3 would make it a cubic relationship, x4 would make it quartic and so on.

Q: What is the shape of a graph of a linear relationship?

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Linear = Straight line! So, a graph of a linear relationship is a straight line.

a line

A linear relationship will show up on a graph as a straight line.

A linear graph shows a linear equation in which the value of one variable depends on the value of the other variable.

It's linear, so it's a line...

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Linear = Straight line! So, a graph of a linear relationship is a straight line.

It takes the shape of a line.

It's a cartesian plane.

a line

A linear relationship will show up on a graph as a straight line.

You can decide from a graph wheter a ralationship is linear or non linear if the line is staight is linear but if the line is not straight is not linear.

The graph is a straight line.

A linear graph shows a linear equation in which the value of one variable depends on the value of the other variable.

It's linear, so it's a line...

A straight line graph plotted on the Cartesian plane

A linear relation is a straight line. A non-linear relation is not - it mayor may not be be a curve.

linear graph between an independent and independent variable