Question

Bruce pitches for his little brother's baseball team. He has observed that the number of pitches a batter hits varies and is given by the function
f(x) = x – 11, where x is the number of pitches and f(x) is the number of hits. If batters get {4, 12, 14, 27, 42} hits, how many pitches did Bruce throw?



{13, 21, 24, 26, 44}



{17, 24, 27, 28, 35}



{20, 27, 32, 33, 45}



{15, 23, 25, 38, 53}

Answer 1

for example I conside 4 hits, so I can write this equation:
4 = x -11

Answer 2

consider*

Answer 3

now I add 11 to both sides, so i get:
4+11=x-11 +11
please simplify and solve for x

Answer 4

x=15

Answer 5

correct!

Answer 6

ok so it's D

Answer 7

yes! That's right!

Answer 8

ok thanks

Answer 9

:)