Answer:
<em>64 ; 8</em>
Step-by-step explanation:
a² ± 2ab + b² = (a ± b)²
x² + 2(8)(x) + 8² =
x² + 16x + <em>64</em> =
(x + <em>8</em>)²
You could use a simple pencil test to figure it out.
Place a pencil vertically on the paper, and move it left to right or vise-versa
When moving it make sure the pencil doesn't hit two points at once if it does it is not a function, but this is not the case
This is a function
Answer:
I'm pretty sure it's A.
Step-by-step explanation:
The formula is y=mx+b,
Where m is the slope
And b is the y intercept
You listed it with the numbers y= 2/5x - 1
So we know the y intercept is -1
We know the slope is 2/5, witch is 2 up and five to the right, due to rise over run.
So the correct graph is A.
Answer:
128
Step-by-step explanation:
You find the number of subsets of a set by using the formula 
.
We have 7 elements so that means we have 
subsets.
