The function y = 10x + 100 represents the amount y (in dollars) of money in your bank account after you babysit for x hours.
a. identify the independent and dependent variables
b. you babysit for 4 hours. find the domain and range of the function

!

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?

Write the equation in general quadratic form: plz !