Step-by-step explanation:
a) one solution
x=30
b) no solution 0=0
c) no solution
0≠-21
Answer:
5
Step-by-step explanation:
Put -2 where x is and do the arithmetic.
f(x) = 2x² -3
f(-2) = 2(-2)² -3 = 2(-2)(-2) -3 = 8 -3
f(-2) = 5
Answer:
You have to work backwards here
so if you had 100 dollars left and u spent 50 on a radio
100+50=150
Then You spent a 1/6 of it on stationery
So you mustve had 5/6 money left or 150 dollars
so you multiply that to find that
5/6=150/x
5x=900
x=180
so add 30 dolalrs to 150 and you have 180.
the you spent a third
you repeat the same process
the you have ur ANSWER
1. Let the given line be the graph of function f.
2. Let g be the inverse function f.
3. If f(a)=b then g(b)=a. So if point (a, b) is on the original line, point (b, a) will be on its inverse.
4. Take a look at the choices we have.
In A, the first point is (-2, -11), which means that in the line we should have (-11, -2). Clearly we don't.
In C, point (-11, 2) tells us that we should have point (2, -11) in the line, but clearly 2 is matched to a value close to -1
In D, (2, -11) indicates that (-11, 2) is in the lone, but is not even close.
ANSWER: B
check: All (-2, 11), (-1, 8), (0, 5), (2, -1) are in the given line
