the dependent variable is the length of the leaf
help i need if for my A- level ISA which is tomorrow
thanksHow to draw a graph when the dependent variable is length of leaf and independent variable light and shade?
The independent variable is always on the X axis (horizontal axis) and the dependent variable is always on the Y axis (vertical axis).
How did you measure/change the amount of light/shade? Was it something definite where you could give a percentage of available light that the plant received? If so, find the range of values and decide how many units each "box" of the graph would represent - 1? 2? 5? 10? - so that all fit on a page of graph paper without leaving too much blank space. If you just used a value such as "low", "medium", and "high", use those labels at the bottom.
I imagine you measured the actual lengths of the leaves, so these would be the units on the Y axis. Again, you don't have to mark every value, unless there wasn't much difference between the leaves. If there was, you may only want to show every 2, 5, or 10 units so all fit on the page without leaving a lot of blank space.
If you were using actual measurements or percentages for the light/shade, you could show your data with either a line or bar graph, but if you used low-high values, it would be better as a bar graph.
Graph paper is an easy way to make your graph if you're not used to using a spreadheet program (such as Microsoft Excel) to make one.
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