One of the x-intercepts of the function y = f(x) is 4. Choose the expression which COULD represent f(x).
A) f(x) = (x + 7)3
B) f(x) = (x + 5)2(x - 4)
C) f(x) = (x + 6)(x - 3)2
D) f(x) = (x + 4)(x + 3)(x - 7)

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like:

answer: no

step-by-step explanation: because the big angle will spread away the 2 side that it is on and make the opposite side even longer.