How do you write #f(x) = 2(x+1)^2 - 3# in standard form?
1 Answer
Jun 27, 2017
Explanation:
#" the equation of a parabola in standard form is "#
#• y=ax^2+bx+c ; a!=0#
#"expand " (x+1)^2" using FOIL"#
#f(x)=2(x^2+2x+1)-3#
#color(white)(f(x))=2x^2+4x+2-3larr" distributing"#
#color(white)(f(x))=2x^2+4x-1larrcolor(red)" in standard form"#
