Answer:
50 represent the initial fee or cost added to the total cost
Step-by-step explanation:
y=150x + 50
y represents the total cost and
x represents the number of hours she spends at the home.
Just like the slope intercept form y=mx + b; where m is the slope of the rate of 150 per hour and y is the total cost.
50 represent the initial fee or cost added to the total cost; in order words, 50 is the b value or where the cost is at 0 hours.