(1, 9) and (11,1)
slope
= (9 - 1)/(1 - 11)
= 8 /-10
= -4/5
= - 0.8
answer
slope = - 0.8
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>
Answer:
4402
Step-by-step explanation:
15,000-10,598=4,402