Answer:
I got 28
Step-by-step explanation:
76×4=304
360-304=56
56÷2=28*
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When it says f(x) and x is replaced with a number, it just means replace the x in the equation with that number.
(Simpler) Way to solve using the graph:
Go to where x = -4 (4 spaces right of the center) and look above and below it for the line. Wherever the line is, is the answer. So f(-4) = 2 because when x is -4, the y value is 2.
Example of solving with an equation:
f(3) = 2
f(3) = 2(3)
f(3) = 6
You create an equation for the line, than substitute -4 in to the equation.
There would be a 10% chance that they would have the same birthday
Answer: f(-2)=6.
Explanation: Since -2 is less than 1 you plug it into the top equation for -(-2)+4 = 2+4 =6