Answer:
(0,1) and (-2,9)
Step-by-step explanation:
A point (x,y) lies on the graph of f(x) =
if it satisfies the condition y = 
<h3>
(0,1):</h3>
x = 0 and y = 1.
This point satisfies the required condition as
= 1
Hence, this point <u>is</u> on the graph of f(x) = 
<h3>
(3,27):</h3>
x = 3 and y = 27.
This point doesn't satisfy the required condition as
=
≠ 27
Hence, this point i<u>s not</u> on the graph of f(x) = 
<h3>
(-2,9):</h3>
x = -2 and y = 9.
This point satisfies the required condition as
=
= 9
Hence, this point <u>is</u> on the graph of f(x) = 
<h3>
(-1,
):</h3>
x = -1 and y =
.
This point satisfies the required condition as
y =
=
= 3 ≠ 
Hence, this point <u>is not</u> on the graph of f(x) = 
Answer:
Area= 64pi or 201.06
Circumference: 16pi or 50.265
Step-by-step explanation:
Area= \pi r^{2}
pi (8)^2 = 64pi or 201.06
Circumference= 2pir , 2(pi)8 = 16pi or 50.2
Answer: b) 15.7
<u>Step-by-step explanation:</u>
Look at the z-table (below) to find 0.2500
Notice that the value is not on the table but is between 0.2486 and 0.2517 which are located on the z-table at 0.67 and 0.68
The given value is closer to 0.2486 so use 0.67 as the z-score.
Now, let's find the x-value using the formula: 
