Question

The plot below represents the function f(x)

How do I evaluate and solve these expressions??

Answer 1

9514 1404 393

Answer:

• f(3) = 4
• x = -3 for f(x) = 3

Explanation:

a) Find 3 on the x-axis. Locate the point on the graph where the vertical line x=3 intersects it. Find the y-coordinate of that point.

The point of intersection is (3, 4). Then f(3) = 4.

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b) Find 3 on the y-axis. Locate the point on the graph where the horizontal line y=3 intersects it. Find the x-coordinate of that point.

The point of intersection is (-3, 3). Then f(-3) = 3; x = -3.