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This is the graph of f(x). What is the value of f(3)?

10V
O A. 5
OB. 6
O C. 3
O D. 8

This is the graph of f(x). What is the value of f(3)? 10V O A. 5 OB. 6 O C. 3 O D-example-1

1 Answer

9 votes

Answer:

The value of f(3) is 8D

Explanation:

  • In the function f(x) = y, y is the corresponding value of x
  • Ex: If f(a) = b, then the value of y = b at x = a

Let us solve the question

∵ The given figure represents the function f(x)

→ That means every point on the graph represents f(x) = y

f(x) = y

∵ We need to find f(3)

→ That means we need the value of y at x = 3

x = 3

Look at the graph and find the y-coordinate of the point that lies on the curve and has x-coordinate = 3

→ Each small square on the x-axis represents 1 unit, and on the y-axis

represents 2 units

∵ There is a point on the graph that has x-coordinate = 3

∵ The y-coordinate of this point is 8

The point (3, 8) lies on the graph of f(x)

∴ x = 3 and y = 8

f(3) = 8

The value of f(3) is 8

User Sneak
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