A student has received 56, 70, 61 and 46 on his first four college algebra exams this semester. He asked the instructor what gra
de he would need to make on the fifth exam to pass the course. What score will he need to earn to receive 70% or higher on the fifth exam? Set up an equation/inequality and show all work and find the solution. Please help!
The domain of a function contains the x-values of the function while the range of the function contains the y-values of the function. In this case, we substitute 25 and 64 to y. Then, 25 = k2 + 2 k + 1 (k-4) * (k+6) = 0 64 = k2 + 2 k + 1 (k-7) * (k+9) = 0 hence the domain is {-9,-6, 4,7}
