If–1 is a root of f(x), which of the following must be true?
O A factor of f(x) is (x - 1).
O A factor of f(x) is (x + 1).
O Both (x - 1) and (x + 1) are factors of f(x).
ONeither (x - 1) nor (x + 1) is a factor of f(x).

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.

she drove 134 miles

step-by-step explanation:

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24