Question

line graphs show data plotted as points that are connected by a line. line graphs are often used to show change over time and can be used to compare two or more sets of data.
before a line graph can be constructed, you must identify the two variables that will serve as x and y coordinates on the graph. these are called the

the independent variable is the one being during the experiment.
it is always placed on the

the dependent variable is the observed result of the independent variable being changed. the dependent variable is always placed on the

an easy way to remember this is to ask yourself the questions, “what did i know before i did the experiment?” (independent variable) and “what did i learn by doing the experiment?” (dependent variable)
using the grid below, make a line graph using the information in example 1 from above.
be sure to: (1) determine which variable to place on the horizontal (x) axis and which variable to place on the vertical (y) axis. (2) label each axis appropriately. (3) scale each axis appropriately. (4) title your graph.

Explanation:

The blanks are about the basic concepts of variables in graph - making for experiments. The two types of variables are independent and dependent. The independent variable is manipulated and placed on the horizontal (x) axis, and the dependent variable is the result and placed on the vertical (y) axis.

Answer:

Before a line graph can be constructed, you must identify the two variables that will serve as x and y coordinates on the graph. These are called the independent variable and the dependent variable.
The independent variable is the one being manipulated during the experiment. It is always placed on the horizontal (x) axis.
The dependent variable is the observed result of the independent variable being changed. The dependent variable is always placed on the vertical (y) axis.

(Note: Since no data from example 1 is provided, the actual line - graph creation part cannot be completed.)