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 table shows three values of x and their corresponding values of \( f\left(x\right) \), where \( f\left(x\right)=\frac{kx+45}{x+2} \) and k is a constant. What is the value of k?
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函数记号・代入与复合进阶
The function \( f \) is defined by \( f\left(x\right)=\frac{x+11}{3} \),and \( f\left(a\right)=16 \), where a is a constant. What is the value of a?
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函数记号・代入与复合进阶
The function g is defined by g (x)=-7x + 80. What is the value of g (x) when x = -2?
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函数记号・代入与复合挑战
The function f gives the product of a number, x, and a number that is 7 more than x. Which equation defines f?
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函数记号・代入与复合进阶
The function f is defined by \( f\left(x\right)=\frac{7}{10}x+63 \) . What is the value of f (20)?
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函数记号・代入与复合进阶
The function f is defined by \( f\left(x\right)=2+\sqrt{x} \) . What is the value of f (100)?
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函数记号・代入与复合进阶
The function g is defined by \( g\left(x\right)=\sqrt{8x+1} \) . What is the value of g(10)?
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函数记号・代入与复合进阶
The function f is defined by\( f\left(x\right)=\frac{1}{2}\left(x+10\right) \) . What is the value of f (8)?
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函数记号・代入与复合挑战
The function g is defined by g(x)= 8x. For what value of x is g(x)= 24?
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函数记号・代入与复合挑战
The table shows three values of x and their corresponding values of g(x), where \( g\left(x\right)=\frac{f\left(x\right)}{x+2} \) and f is a linear function. What is the y-coordinate of the y-intercept of the graph of y =f (x) in the xy-plane?
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函数记号・代入与复合进阶
If g(x) = x3+1, what is the value of g(4) + g(2)?
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函数记号・代入与复合挑战
f(x) = 3x + 6
g(x) = 2f(x) − 2
Using the given functions, what is the value of g(3) ?
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