Graphing Flashcards
Science (10 cards)
What are the essential components of a properly plotted graph?
Title, labeled axes with units, appropriate scale, correctly plotted points, and a best-fit line if needed.
How do you decide whether to use a line of best fit or connect the points?
Use a line of best fit for trends; connect points directly for discrete data.
How do you determine the independent and dependent variables in a graph?
Independent variable → x-axis; Dependent variable → y-axis.
Why is choosing the correct scale important in a graph?
It ensures accuracy, makes trends visible, and allows precise readings.
What does a steeper gradient in a graph indicate?
A faster rate of change between variables.
How do you calculate the gradient of a straight-line graph?
Gradient = (change in y) ÷ (change in x).
What is the significance of an intercept in a graph?
It shows the value of the dependent variable when the independent variable is zero.
How can you identify anomalies in a plotted graph?
Anomalies are points that do not fit the trend or pattern of the other data points.
How do you estimate a missing value using a graph?
Use interpolation (within known data) or extrapolation (beyond known data, but less reliable).
Why should data points not always be connected dot-to-dot?
Because real-world relationships follow trends, not sharp jumps.
