Answer:
the answer is c
Step-by-step explanation:
its the right answer lol
3 people have four credit cards, because if you follow the "4" on the y axis, you will find 3 dots
F(x) is continuous for all x.
Pick a point and show that f(x) is either negative or positive. Pick another point and show that f(x) is negative, if positive, or positive, if negative.
At x = 30, f(30) - 1000 = 900 + 10sin(30) - 1000 ≤ 0
Now, show at another point f(x) - 1000 is positive, and hence, there would be root between 30 and such point.
Let's pick 40.
At x = 40, f(40) - 1000 = 1600 + 10sin(40) - 1000 ≥ 0
Since f(x) - 1000 is continuous, there lies a root between 30 and 40, and hence, 30 ≤ c ≤ 40
Your answer would be -11.
-3, 1 is the answer because the spot is on the -3 and in the first low with the Y-axis and stuff .
