3x - 4y = -5
4y = 3x + 5
y = (3/4)x + 5/4
8x + 6y = -5
6y = -8x - 5
y = -(8/6)x - 5/6
y = -(4/3)x - 5/6
Because the slopes are negative reciprocals, the lines are perpendicular.
Answer:
<u>Photo Lab:</u> <u>=3.20x +8</u>
<u>Specialty Photos:</u> <u>=2.60x + 10</u>
Step-by-step explanation:
At the Photo Lab, the cost is $3.20 per roll plus 8 per print.
Therefore, the cost of developing a roll of film is:
<u>=3.20x +8</u>
At Specialty Photos the cost is $2.60 per roll plus 10 per print.
Therefore, the cost of developing a roll of film is:
<u>=2.60x + 10</u>
Y equals .11
Hope this helps!
9514 1404 393
Answer:
(x +2)² +(y -7)² = 25
Step-by-step explanation:
The length of the radius can be found from the distance formula.
d = √((x2 -x1)² +(y2 -y1)²)
d = √((1-(-2))² +(11 -7)²) = √(3² +4²) = √25
The standard form equation of a circle with center (h, k) and radius r is ...
(x -h)² +(y -k)² = r²
Here, we have (h, k) = (-2, 7) and r = √25, so r² = 25. The circle's equation is ...
(x +2)² +(y -7)² = 25
12.57 is the circumference