Vertical lines are perpendicular to horizontal lines.
So the equation of the line is a vertical line that pass through (3,4).
(3,4) has an x-value of 3.
So the line, x=3 will go through it.
answer: x=3
Answer: 9(3 + 2r)
<u>Step-by-step explanation:</u>
27 18r
∧ ∧
<u>3</u> 9 <u>2</u> 9r
∧ ∧
<u>3</u> <u>3</u> <u>3</u> <u>3r</u>
27: 3 * 3 * 3
18r: 2 * 3 * 3 * r
Common Factors are 3 * 3 = 9
27: 9 * <u>3</u>
18: 9 * <u>2r</u>
27 + 18r = 9(3 + 2r)
$195 x 40%
195 x .40 = 78
The price decrease is $78.00
Hope this helps. :)