SOLUTION: use the graph of y=x2+4x-5 a) without solving the equation or factoring, determine the solution(s) to the equation x2+4x-5=0, using only the graph. b) Does this function have a

Algebra ->  Rectangles -> SOLUTION: use the graph of y=x2+4x-5 a) without solving the equation or factoring, determine the solution(s) to the equation x2+4x-5=0, using only the graph. b) Does this function have a      Log On


   

Question 301954: use the graph of y=x2+4x-5
a) without solving the equation or factoring, determine the solution(s) to the equation x2+4x-5=0, using only the graph.
b) Does this function have a maximum or a minimum?
C) what are the coordinates of the vertex in (x,y) form?




Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Solve by graphing:
y+=+x%5E2%2B4x-5
graph%28400%2C400%2C-10%2C10%2C-10%2C10%2Cx%5E2%2B4x-5%29
a) Solutions: x = -5 and x = 1
b) The function has a minimum.
c) The coordinates of the vertex are: (-2, -9)