5272道题目5525 条题源记录 · 相同内容已合并
函数记号・代入与复合进阶
The function h is defined by \( h(x)=100x-40 \). What is the value of \( h(x) \) when \( x=4 \)?
原库参考解析
函数记号・代入与复合进阶
The function \( f \) is defined by \( f(x)=5(3)^{x} \). What is the value of \( f(x) \) when \( x=4 \)?
原库参考解析
函数记号・代入与复合进阶
The function g is defined by \( g(x)=10x+18 \) . What is the value of \( g(−4) \)?
原库参考解析
函数记号・代入与复合挑战
The function \( f \) is defined by \( f(z)=4z \). Which of the following is equivalent to \( f(z−7) \)?
原库参考解析
函数记号・代入与复合进阶
\( f(x)=x+\frac{2}{5} \)
The function \( f \) is defined by the given equation: \( f(x)=x+\frac{2}{5} \). What is the value of \( f(x) \) when \( x=\frac{3}{5} \)?
原库参考解析
函数记号・代入与复合进阶
The graph of radical function \( f \) in the xy-plane, where \( y=f(x) \), contains the points (-511, -2.80) and (0, -9.4). What is the value of \( f(0) \)?
原库参考解析
函数记号・代入与复合挑战
The function \( f \) is defined by \( f(x)=5\left(\frac{1}{4}-x\right)^2+\frac{3}{4} \). What is the value of \( f\left(\frac{1}{4}\right) \) ?
参考答案
函数记号・代入与复合进阶
\( f(x)=5x+6 \)
\( g(x)=7x-5 \)
\( h(x)=2x+3 \)
The functions \( f, \)g and h are defined as shown. If \( f(x)·g(x)−h(x)=ax^{2}+bx+c, \) where a, b and c are constants, what is the value of b ?
参考答案
函数记号・代入与复合进阶
The function \( f \) is defined by \( f(x)=2+\sqrt{x} \). What is the value of \( f(144) \)?
参考答案
函数记号・代入与复合挑战
\( f(a)=\left(a^2+12a+36\right)(a+1) \)
\( g(b)=b(b+4)(b-2)^2 \)
The functions \( f \) and \( g \) are defined by the given equations. If \( f(3)=c, \) where c is a constant, what is the value of \( g(\frac{c}{54}) \) ?
参考答案
函数记号・代入与复合挑战
The graph of a polynomial function \( y=f(x) \) in the xy-plane passes through the point (7, 6). What is the value of \( f(7) \)?
参考答案
函数记号・代入与复合进阶
The function \( f \) is defined by \( f(x)=3x-8 \). What is the value of \( f(9) \)?
参考答案
