Question

d. the bike never started moving

which choice describes how to identify a non - linear relationship on a graph?

a. the line is perfectly straight

b. the line never changes its angle

c. the line disappears completely

d. the line curves or changes direction, not remaining a straight line

which type of graph would best illustrate seasonal changes in temperature over a year?

Explanation:

For the question "Which choice describes how to identify a non - linear relationship on a graph?"

To identify a non - linear relationship on a graph, we need to recall the definition of linear and non - linear graphs. A linear relationship is represented by a straight line (options a and b describe linear characteristics as a straight line doesn't change angle and is straight). Option c is not a valid description of a graph relationship. A non - linear relationship is one where the graph is not a straight line, meaning it curves or changes direction. So option d is correct.

Seasonal changes in temperature over a year involve showing data points (temperature) over time (months or seasons). A line graph is best for showing trends over time. It can clearly display how temperature rises and falls throughout the year, showing the pattern of seasonal changes. Other graph types like bar graphs are better for comparing discrete categories, pie charts for showing proportions, and scatter plots for showing relationships between two variables without a time - based trend focus.

Answer:

d. The line curves or changes direction, not remaining a straight line

For the question "Which type of graph would best illustrate seasonal changes in temperature over a year?"