1 Marissa's dance studio charges a monthly fee, plus a fixed amount per class. The line shows the cost, y, for x classes taken. Write an equation for the line in
slope-intercept form. Show your work.
Dance Class Costs
100
80
60
Cost ($)
40
20
0
2
4
6
8
10
Number of Classes

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?