Below is the graph of a trigonometric function. It intersects its midline at (-4.5,3) and again at (3.6,3).what is the period of the function?

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

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plz mark brainliest

step-by-step explanation:

infinity is the answer