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 \( k \) is defined by \( k\left(x\right)=x^3+600 \). What is the value of \( k\left(x\right) \)when \( x=2 \)?
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函数记号・代入与复合进阶
For the function h, the table gives three values of x and their corresponding values of \( h\left(x\right) \). Which equation could define h?
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函数记号・代入与复合挑战
If \( f\left(x\right)=x+5 \) and \( g\left(x\right)=5x \), what is the value of \( 2f\left(3\right)-g\left(3\right) \)?
原库参考解析
函数记号・代入与复合挑战
\( f\left(x\right)=5\left(g\left(x\right)\right)-3 \)
\( g\left(x\right)=∣\ 12x-7\ ∣ \)
The functions \( f \) and g are defined by the given equations. What is the value of \( f\left(-10\right) \)?
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函数记号・代入与复合进阶
The function \( f \) is defined by \( f\left(x\right)=8\left(2x+2\right) \). For what value of x does \( f\left(x\right)=80 \) ?
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函数记号・代入与复合挑战
\( f\left(x\right)=\frac{x+9}{3} \)
For the function \( f \) defined by the equation shown, what is the value of \( f\left(-6\right) \)?
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函数记号・代入与复合挑战
The function \( T\left(x\right)=\frac{20,000-6.5x}{1,000} \) gives the estimated air temperature \( T\left(x\right) \), in degrees Celsius \( \left(°C\right) \) , surrounding a hot air balloon at an altitude of x meters. If the estimated air temperature surrounding the hot air balloon is \( 15\ °C \), which of the following is closest to the altitude, in meters, of the hot air balloon?
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函数记号・代入与复合挑战
The function m is defined by \( m\left(x\right)=5x+3 \) , and the function p is defined by \( p\left(x\right)=3-x \) . What is the value of \( 2m\left(3\right)-p\left(3\right) \) ?
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函数记号・代入与复合挑战
\( f\left(x\right)=\left(2x-3\right)\left(x+8\right) \)
\( g\left(x\right)=3\left(6x-9\right) \)
The functions \( f \) and \( g \) are defined by the equations shown. Which of the following is equivalent to\( f\left(x\right)-g\left(x\right) \)?
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函数记号・代入与复合进阶
The function \( f \) is defined by \( f(x)=2x+b \) , where b is a constant and \( f(7)=6 \). What is the value of b?
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函数记号・代入与复合进阶
The function \( h \) is defined by \( h(x)=4x−9 \). What is the value of \( h(−3) \) ?
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函数记号・代入与复合进阶
If \( f(x)=x+3 \) and \( g(x)=3x \) , what is the value of \( 6f(3)−g(3) \) ?
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