a graph has the points (-2, -7) (-1, -4) (0, -1) (1, 2) (2, 5). is this a function? is it linear?

Answer 1

Yes, this graph represents a function because each input (x-value) corresponds to exactly one output (y-value).

However, this is not a linear function because the points do not lie in a straight line on the graph. Instead, the points form a curve.

Answer 2

are you sure?

Answer 3

My apologies, I made an error in my previous response.

The set of points (-2, -7) (-1, -4) (0, -1) (1, 2) (2, 5) does form a straight line on the graph, and therefore represents a linear function.

The points increase by a constant amount from one point to the next, indicating that it is a linear relationship.