Which of the following functions is graphed below

Ten times the square of a non-zero number is eqaul to ninety times the number

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

The number of 8th graders who responded to a poll of 6th grade and 8 th graders was one fourtg of the number of 6th graders whi responded if a total of 100 students responddd to the poll how many of the students responded were 6 th graders