1. Given the function rule f(x)= x^2 - 3x + 2, what is the output of f(-2)?
A. 12
B. 4
C. -8
D. 0
2. Suppose you earn $10 each hour you babysit. Which function describes the relationship between your total earnings E and the number of hours you babysit, h?
A. E(h) = 10h
B. E(h) = h + 10
C. E(h) = h – 10
D. h = 10E
1. A
2. A
please check, thanks
Please check.. Thanks
1. f(x) = x^2 - 3x + 2
for f(-2), put in -2 wherever you saw an x
f(-2) = (-2)^2 - 3(-2) + 2
= 4 + 6 + 2
= 12
you are correct
2. correct again.
Thanks!!!
1. To find the output of the function f(-2), substitute -2 into the function rule f(x)= x^2 - 3x + 2.
f(-2) = (-2)^2 - 3(-2) + 2
f(-2) = 4 + 6 + 2
f(-2) = 12
Therefore, the output of f(-2) is 12.
Hence, the correct answer is A.
2. The relationship between your total earnings E and the number of hours you babysit, h, is given as $10 per hour.
This means that for every hour you babysit, you earn $10.
We can represent this relationship using the function E(h) = 10h, where E(h) represents your total earnings and h represents the number of hours you babysit.
Therefore, the correct answer is A.
So, your answers are both correct. Well done!