Comparing functions (8th grade math)

We compare the properties of two functions that are represented in different ways. In the first exercises, we check which function has the greater rate of change (from 3 to 4, and from 2 to 3), when one function is given as a table of values and for the other we're given its graph.

In the second example, one function is given as an equation (y = 8 − x) and the other, again, we're given a graph. Both are linear functions. We check which one has a greater initial value and which one has a greater rate of change.

And in one more example, we are to check whether the two depictions (table of values and a graph) are the same function and which one has a greater value when t = 50 minutes.

See also

Linear Versus Nonlinear Functions — video lesson

Math Mammoth Grade 8 curriculum

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