We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.

If we graph these functions on the same coordinate plane.

f(x) =7

g(x)= x^2 +2x-8


What are the solutions to the equation f(x) = g(x)?


select each correct answer







 Mar 15, 2019

Per the last one, just plug these into a graphing calculator and it's easy to see the two intersection points are (-4, 7) and (3, 7). The reason this is the answer is that these two values are the only two values where both equations are equal to each other. Sorry I can't provide an example like CPhill. You can also figure this out by setting both equations equal to each other. \(x^2 + 2x - 8 = 7\). Subtracting 7 from both sides gets us \(x^2 + 2x - 15\). You can figure out the rest by putting this into the quadratic formula.


Hope this helps!

 Mar 15, 2019

Thanks, Lag


Here's a graph : https://www.desmos.com/calculator/yvn9temz1q


The solutions occur at x = -5   and x = 3



cool cool cool

 Mar 15, 2019

12 Online Users