Using graphing technology, approximate where the graph of y = 5x^2 − 3x − 9 crosses the x-axis.

(1.55, 0) and (−1.15, 0)

(1.23, 0) and (−1.26, 0)

(1.32, 0) and (−1.01, 0)

(1.68, 0) and (−1.08, 0)

Question

Using graphing technology, approximate where the graph of y = 5x^2 − 3x − 9 crosses the x-axis.

 (1.55, 0) and (−1.15, 0)

 (1.23, 0) and (−1.26, 0)

 (1.32, 0) and (−1.01, 0)

 (1.68, 0) and (−1.08, 0)

parthkohli · Answer

Ever heard about Wolfram? That's the technology you'd ever need at any subject!

anonymous · Answer

what u do

parthkohli · Answer

http://www.wolframalpha.com/input/?i=f%28x%29+%3D+5x%5E2+-+3x+-+9 See the graph here?