Which function is graphed?

Which shows the pre image of triangle xyz

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.

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.