Question

f(x)=(x+4)^2-9 determine were the f(x) intersects the x-axis

Answer 1

intercepting with the x axis means f(x)=0

Answer 2

\[0=(x+4)^2 -9\]

Answer 3

\[0=x^2+8x+7\]

Answer 4

\[(x+1) (x+7) = 0\]

Answer 5

\[x= -1 x= -7\]

Answer 6

\[y'=2x+8\]

Answer 7

\[y''=2\]

Answer 8

meaning minimum turning point so if you were to plot this it should have a minimum turning point and pass through those points