On a diagnostic test one of your students does the following

On a diagnostic test, one of your students does the following work. Identify the mistake the student make. What topic(s) would you encourage the student to review? Answer with complete sentences. Does the graph represent a linear function? Explain your reasoning. The graph represents a linear function. The lines are straight.

Solution

The given graph does not represent a linear function.

Linear functions are those whose graph is a straight line. A linear function has the following form. y = f(x) = a + bx.

Since this does not graph to a straight line like linear functions do , so this graph does not represent a linear function.