2100005105 Level: AThe pictures show graphs of different functions \(f\). For which of the graphed functions is \(D(f) = \{2;3;4;5;6\}\)?
1003019301 Level: BWhich of the following functions has maximum at \( x=-3 \)?\( f(x) = -2x-3;\ x\in[-3;3)\)\( h(x) = 2x+3;\ x\in[-3;3]\)\( g(x) = -3x+2;\ x\in(-3;3]\)\( m(x) = 2x-3;\ x\in(-\infty;0]\)
1003028403 Level: BWhich of the following functions has the range \( [-3;\infty) \)?\( f(x)= x^2-3\)\( h(x)= \sqrt{x-3} \)\( g(x)= |x+3| \)\( m(x)=\frac1x-3 \)
1003028404 Level: BLet \( f(x)=\frac{\sqrt{x+3}}{x^2-25} \). Which of the statements about the domain of the function \( f \) is true?\( D(f)=[-3; 5)\cup (5;\infty) \)\( D(f)=(-3;5)\cup(5;\infty) \)\( D(f)=(-\infty;-5)\cup(-5;5)\cup(5;\infty) \)\( D(f)=(-\infty;-5)\cup(-5;-3)\cup(-3;5)\cup(5;\infty) \)