Which of the following equations has a graph that crosses the y-axis at a point lower than the graph of y = -2x^2- 1? y = -3x^2- 1
y = 3x^2- 3
y = -3x^2 + 3
y = -3x^2 + 1

Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee,f, for a single job is a function of the number,t, of hours it takes him to complete the job. write the function's formula.

Don't know how to find x given these segment lengths

If x+y+z=0 what is the value of [tex] {x}^{3} + {y}^{3} + {z}^{3} [/tex]