Final answer:
To find f(-4), we need to look at the given set f = {(8,9),(2,-4),(-4,-5)}. In this set, the first value in each pair represents x and the second value represents y. So, we can interpret f(-4) as finding the value of y when x = -4. Looking at the set f, we can see that when x = -4, the corresponding y-value is -5. Therefore, f(-4) = -5.
Step-by-step explanation:
To find f(-4), we need to look at the given set f = {(8,9),(2,-4),(-4,-5)}. In this set, the first value in each pair represents x and the second value represents y. So, we can interpret f(-4) as finding the value of y when x = -4.
Looking at the set f, we can see that when x = -4, the corresponding y-value is -5. Therefore, f(-4) = -5.