Question

Find the range of the graphed function

Answer 1

From the graph we can see that the smallest value of y is -6 and that the largest is 9. Thus, the range is [-6,9], equivalent to Answer Choice D.

Answer 2

ANSWER

$D. - 6 \leqslant y \leqslant 9$


EXPLANATION


The range of a function refers to the values of y for which x is defined.


The least value of y from the graph is -6.

The reason is that each box is 2 units, therefore tracing down to the third box on the y-axis gives -6.


Similarly the highest value is 9.


Therefore the range is


$- 6 \leqslant y \leqslant 9$


The correct answer is D.