1. What values of a, b, and c would you use in the quadratic formula for the following equation?
5x^2 +9x=4
a = -4,5 = 9,0 = 5
a=5,b= 9,c=-4
a = 5,5 = 4.c = 9
a=5, b = 9,0 = 4

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?