vertex

Hallo Gast!

vertex of f(x)= -0.06x²+2.7x+5.2

${\color{red} f(x)= -0.06x²+2.7x+5.2}$

${\color{blue}f'(x)=y= -0.12x + 2.7=0}$

${\color{blue}x=}\frac{-2.7}{-0.12}={\color{blue}22.5}$

${\color{blue}f(x)=} -0.06\times{}22.5^2+2.7\times22.5+5.2={\color{blue}35.575}$

Scheitelpunkt der Parabel:    S (22.5 / 35.575)

Gute Nacht wünscht

asinus :- )    !