f(x) = (3/4)ˣ - 4
As x gets really negative (3/4)ˣ grows positively without bound (because it's (4/3)⁻ˣ and 4/3 > 1).
As x gets really positive (3/4)ˣ tends to zero but never quite gets there.
So (3/4)ˣ > 0 for all x
So f(x) > 0 - 4 for all x
Answer: { y | y > -4 }, first choice
13. 4/5
14.11/25
15.-1 7/20
16. 4/5
17. -1 5/10
18.4 9/20
One easy way is first solve for y
3x-5y=9
minus 3x both sides
-5y=-3x+9
divide both sides by -5
y=
so
if x=-1
y=
y=
y=
if x=0
y=
y=
y=
if x=1
y=
y=
y=
400 - 160
the answer would be 240
Answer:
c
Step-by-step explanation: