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Algebra / Linear functions Difficulty: Medium

h(x)=x+b

For the linear function h , b is a constant and h(0)=45. What is the value of b ?

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Explanation

The correct answer is 45 . It’s given that h0=45. Therefore, for the given function h , when x = 0 , hx=45. Substituting 0 for x and 45 for hx in the given function, hx=x+b, yields 45=0+b, or 45=b. Therefore, the value of b is 45 .