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GCSE

Plot and Interpret Graphs

Question

When a line on a graph is going up, what does that mean?

3 years ago

ยท

61 Replies

ยท

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A

Antonietta Nikolaus


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61 Answers

D
Deen Choudhury

When a line is going up, it means it has a positive correlation

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Joshua Rondal

The answer can change depending on the context of the graph (ie: the labels on the x-axis and y-axis). Generally, when a line on the graph is going upwards, it is said to have a positive gradient.


This means that on any point of the line, it should be the case that the y-coordinate divided by the x-coordinate will give a positive answer. As an inequality it would be "(y/x) > 0".

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If this is a straight line graph, it means that it has a positive gradient. Another way of saying that is that whenever you make x bigger, y has to get bigger too.


If we're talking about scatter graphs, and this is a line of best fit, it means there is a positive correlation between the variables, so if one is high the other is likely to be high too, and when the first is low the second is likely to be low too.

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Paige Green

This would show a positive correlation as one value increases so does the other.

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B
Ben Smith

It has a positive gradient

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By a line going up on a graph, if your referring to correlations, then a line in the diagonal upwards direction would mean a positive correlation.

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D
Derek Johnson

The gradient of the straight line is positive and on an upward trend. There are also x increasing values (independent variable) with increasing y values (dependent variable).

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T
Thanusan

It means it has a positive gradient

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that When our X-value increases, our Y-value is also increasing

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J
Jasmine Agyakwa

It means the line has a positive gradient and that the rate of change of the y component increases as the x component increases.

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D
Darah Al Ghawi

This means that as x increases, the y is also increasing. So it is a positive slope meaning an increase

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M
Mina Fawzi Morzk Hanin

If the line is going up that's mean it's slope (gradient) is positive and the function is increasing in this interval.

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A graph just shows the values of a function depending on what x value you put into it. If the graph is going up, then this means that as you increase the value of x that you put into the function, the value of the function also always increases :)

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A
Asif Mohammed

That means it is sloping upwards assuming you are moving from left to right on the graph and the line is going up. Slope of a line is defined as it's rise over run. Rise being change in y-coordinates and run being change in x-coordinates.

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Positive gradient or positive correlation

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