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2 years ago

What is the y-intercept of f(x) = 3x 2? a. (9,0) b. (0,9) c. (0,-9) d. (9,-9)

Mathematics

2 answers:

Grace [21]2 years ago

4 0

F(X)=3x+9:y intercept is option C
F(X)=3x-9: y intercept is option B

charle [14.2K]2 years ago

3 0

Answer:

f(x) = 3x + 9: y - intercept is option c. (0,-9)

f(x) = 3x - 9: y - intercept is option b. (0, 9)

Step-by-step explanation:

option a and d cant be correct since y = 0 in those answer when the y - intercept is when x = 0

If the function f(x) = 3x + 9

than x = 0

f(x) = 3(0) + 9

f(x) = 0 + 9

f(x) = 9

x = 0 and y = 9 (0, 9)

If the function f(x) = 3x - 9

than x = 0

f(x) = 3(0) - 9

f(x) = 0 - 9

f(x) = -9

x = 0 and y = -9 (0, -9)

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