Question

Solve graphically x2-x-2 =0

Answer 1

y= x2-x-2

let put x= 1

so y=(1)2-(1)-2

y= 1-1-2

y = -2 ( 1,-2) by this ( x,y)

again

x=(-1)

y= (-1)2-(-1)-2

y= 1+1-2

y= 0

(x,y) by this

(-1, 0)

means

(1,-2) & (-1,0)

solve the graph by yourself if problem so tell me