Answer:
1. $1900
2. $9
Explanation:
Part a:
‘If she doesn’t sell any copies of History is Fun’ means x = 0:
∴ y = Melissa’s total pay = $1900
Part b:
Rearranging the equation:
∴m = slope of equation = positive 9
c = y-intercept = 1900
The shape of the graph would be increasing or ascending. And since the Number of copies (x) can never be negative, this means that the amount of pay CANNOT be less than $1900. The amount of $1900 is her minimum pay
The value of m for this equation indicates the change in Melissa’s total pay for every copy she sells.
∴Change in Melissa’s total pay = 9 dollars