5272道题目5525 条题源记录 · 相同内容已合并
分式方程与有理函数进阶
\( \frac{\left(x-7\right)\left(x-8\right)}{x-3}=0 \)
What is the sum of the solutions to the given equation?
原库参考解析
分式方程与有理函数进阶
The function w is defined by \( w\left(r\right)=\frac{1}{r-8}-\frac{r-5}{-r+4.25} \). What is the greatest possible value of r such that \( w\left(r\right)=0 \) ?
原库参考解析
分式方程与有理函数进阶
\( \frac{\left(x-6\right)\left(x-8\right)}{x-5}=0 \)
What is the sum of the solutions to the given equation?
原库参考解析
分式方程与有理函数进阶
The function w is defined by \( w(r)=\frac{1}{r-5}-\frac{r-4}{-r+4.25} \). What is the greatest possible value of r such that \( w(r)=0 \)?
原库参考解析
分式方程与有理函数进阶
The function \( f \) is defined by \( f(x)=\frac{1}{8x} \). What is the value of \( f(x) \) when \( x=9 \)?
原库参考解析
分式方程与有理函数进阶
The function j is defined by \( j(x)=\frac{10x+5}{3p} \), and the function k is defined by \( k(x)=\frac{j(x)·p}{x+1} \), where p is a positive constant. What is the value of \( k(9) \)?
原库参考解析
分式方程与有理函数挑战
The function v is defined by the equation \( v(x)=\frac{x^2+bx+c}{(x+5)(x-19)} \), where b and c are constants. In the xy-plane, the graph of \( y=v(x) \) passes through the points \( \left(0,\ \frac{66}{95}\right) \) and \( (11,\ 0) \). If \( v(q)=0 \), which of the following could be the value of q?
原库参考解析
分式方程与有理函数进阶
For a rational function \( f \), the table shows three values of x and their corresponding values of \( f(x) \). Which of the following could be the graph of \( y=f(x) \)?
原库参考解析
分式方程与有理函数进阶
The function \( f \) is defined by \( f(x)=\frac{2}{11-x} \). What is the value of \( f(x) \) when \( x=9 \)?
原库参考解析
分式方程与有理函数挑战
Which expression is equivalent to \( \frac{7x(x-9)-2(x-9)}{3x-27} \), where \( x>9 \)?
原库参考解析
分式方程与有理函数挑战
The table shows three values of x and their corresponding values of \( f(x) \), where \( f(x)=\frac{kx+45}{x+3} \) and k is a constant. What is the value of k?
原库参考解析
分式方程与有理函数挑战
Which expression is equivalent to \( \frac{34π}{π^{2}−x^{2}}−\frac{34}{x+π} \) where \( x>π \)?
原库参考解析
