Question

Where does the graph of y = 3x2 + 14x − 5 cross the x-axis?
(−5 over 3, 0) and (1, 0)
(5 over 3, 0) and (−1, 0)
(1 over 3, 0) and (−5, 0)
(−1 over 3, 0) and (5, 0)

Answer 1

when graph crosses x axis at that point y = 0
so put y=0 in your equation
3x2+14x-5=0
solve this quadratic equation by factorization or quadratic formula.