What is the y -intercept of the function f of x is equal to 4 minus 5 x ?
Answer
A
negative 4
B
5
C
negative 5
D
4
Explanation
The y-intercept is the value of the function when x = 0. Substituting 0 into f(x) = 4 − 5x gives f(0) = 4 − 5(0) = 4, so the y-intercept is 4, choice B.
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