How do you solve #-x^2 + 14x - 49 = 0# graphically?

Question

2588 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-04-27T19:50:45

#color(blue)("The instruction is to solve graphically")#

Observe that the graph coincides with the x-axis at x=7

So#" "-x^2+14x-49 = 0" at "color(blue)(x=7)#

Construct a table of values

Tony B

Using these values plot #x# against #y#
Tony B

Observe that the graph coincides with the x-axis at x=7

So#" "-x^2+14x-49 = 0" at "x=7#