Question

What is the value of the function at x = 2?
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Answer 1

-3

Explanation:

The graph shows the straight line.

To find the value at x = 2, draw the vertical line passing through the point (2,0). This line intersect the graph at some point. Draw the horizontal line through this point of intersection. This line intersects y-axis at point (0,-3). This means that the coordinates of the point lying on the graph are (2,-3) so

f(2) = -3