Q: Do line graphs have to start at zero?

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Yes

Numbers to the right of zero on a number line are positive numbers; to the left are the negative numbers.

On a number line, the positive numbers extend to the right of zero, and the negative numbers extend to the left of zero. So -3.4 is 3.4 to the left of zero.

A number's distance from zero on a number line is its magnitude or "absolute value."absolute value or magnitude.absolute value

Absolute Value.

Related questions

line graphs show a change over time

No.

A bar graph's data doesn't always start with zero but the scale on the y axis should. If you are not going to start the scale with zero then you have to put a squiggly line at the bottom to show that you skipped this space.

yes a graph has to start from a point 0.

No. And for examples where they don't look at graphs where the x-axis is years. If the scales do not start at zero, this fact should be clearly indicated.

Unless it is a direct proportion, the straight line does not have to start from zero.

Bar graphs and line graphs do not. Straight line, parabolic, and hyperbolic graphs are graphs of an equation.

A horizontal line on a position-time graph or a stationary line on a velocity-time graph represents the motion of an object with zero net force. These graphs indicate constant velocity motion, where the object is moving at a consistent speed in a straight line.

circle graphs add up to 100% , bar and line graphs don't

line graphs are usually the most best way to present data. sometimes i use pie graphs or bar graphs, but usually line graphs are the most meaningful.

Line graphs and Bar graphs

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