When discussing the key features of a linear graph, which of the following statements is true?

Question

The points will make a straight line.
The initial value is always zero
The rate of change can vary along the graph
The points always have positive values

Answer 1

The true statement regarding the key features of a linear graph is:

The points will make a straight line.

In a linear graph, the relationship between the variables is constant, which means that the plotted points will form a straight line.

The other statements are not true in general:

• The initial value is not always zero; it can be any value depending on the equation.
• The rate of change is constant in a linear graph, not varying.
• The points do not always have positive values; they can be negative depending on the context of the graph.