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 graph of a polynomial function \( y=f\left(x\right) \) in the xy-plane passes through the point (5, 7).What is the value of \( f\left(5\right) \)?
原库参考解析
函数记号・代入与复合进阶
The function h is defined by\( h\left(x\right)=5x-9 \). What is the value of\( h\left(-3\right) \)?
原库参考解析
函数记号・代入与复合挑战
The function g is defined by \( g\left(x\right)=3x \). For what value of x is \( g\left(x\right)=12 \) ?
原库参考解析
函数记号・代入与复合挑战
The function \( f\left(x\right)=-40x+280 \) gives the predicted height above the ground \( f\left(x\right) \), in feet, of a model airplane x minutes after it begins to descend. What is the predicted height above the ground, in feet, of the model airplane 4 minutes after it begins to descend?
原库参考解析
函数记号・代入与复合进阶
The function \( f \) is defined by \( f\left(x\right)=-3x+40 \). What is the value of \( f\left(x\right) \) when \( x=-6 \)?
原库参考解析
函数记号・代入与复合进阶
The function \( f \) is defined by \( f\left(x\right)=x^3+27 \). What is the value of \( f\left(2\right) \)?
原库参考解析
函数记号・代入与复合挑战
The function \( f \) is defined by \( f\left(x\right)=50x \). For what value of x is \( f\left(x\right)=150 \)?
原库参考解析
函数记号・代入与复合进阶
The function \( f \) is defined by \( f(x)=15x+10. \) What is the value of \( f\left(x\right) \) when\( x=2 \) ?
原库参考解析
函数记号・代入与复合进阶
The function h is defined by \( h\left(x\right)=7|\ x\ | \). What is the value of \( h\left(-2\right) \)?
原库参考解析
函数记号・代入与复合挑战
The graph of the polynomial function \( f \)in the xy-plane, where \( y=f\left(x\right) \), passes through the point (5, 3). What is the value of \( f\left(5\right) \)?
原库参考解析
函数记号・代入与复合挑战
The function \( f \) is defined by \( f\left(x\right)=4x^2 \). What is the value of \( f\left(11\right) \)?
原库参考解析
函数记号・代入与复合挑战
The function \( f \)is defined by \( f\left(x\right)=20x \). For what value of x is \( f\left(x\right)=140 \)?
原库参考解析
