Question

1. The graph of linear function f contains the point (4, 4) and has a slope of 1/2

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What is the zero of f?
O A. 2
OB. 4
OC -2
OD.-4

Answer 1

• A. 2

Explanation:

Function f will have formula:

• f(x) = 1/2x + b, where 1/2 is slope and b is y-intercept

Using point (4, 4) we find b:

• 4 = 1/2*4 + b
• 4 = 2 + b
• b = 4 - 2
• b = 2

Zero of f is 2

Correct choice is A. 2