If you spin two five-part spinners, each numbered from 1 to 5, what is the probability that the numbers will match?
2 answers:
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We need to find f(1)
f(1) means x=1
Now we look at the three inequalities and choose the one where x=1 satisfies
x<=-1 , -1<x<1 and x>=1
x=1 satisfies the inequality x>=1
so we use the third function to find f(1)
We plug in 1 for x and find f(1)
= 2 + 3 = 5
f(1) = 5