The slope of <em>y</em> = 2<em>x</em> - 5 is 2. Parallel lines have the same slope, so the slope of the line through the given points <em>A</em> and <em>B</em> is also 2. This means
(8 - 4) / (6 - <em>n</em>) = 2
Solve for <em>n</em> :
4 / (6 - <em>n</em>) = 2
4/2 = 6 - <em>n</em>
2 = 6 - <em>n</em>
<em>n</em> = 6 - 2
<em>n</em> = 4
Answer:
The solution to the inequality is:

The solution graph is also attached below.
Step-by-step explanation:
Given
We are given the expression

To determine
Solve for x
Given the expression

Subtract 5 from both sides

Simplify

Multiply both sides by 3

Simplify

Thus, we conclude that:

Therefore, the solution to the inequality is:

The solution graph is also attached below.
Answer:
f(x) = -(x-4)^2 + 5
Step-by-step explanation:
The function
is a quadratic function. Its graph looks like a parabola. The graph has a vertex of (4,5) and opens up downward.
Proving that
for all x:

Answer:
5/100 = 0.056 sales tax
$12+$26+$125 = $163 total purchase without tax
163*0.056 = 9.128 tax based on how much she bought
$163 + 9.128 = $172.128 total amount she paid (b)