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ZX-D880DB39ACNonlinear functions · 第 15 题
Nonlinear functions · 原库模块 1 · Q15 原库参考解析
Function f is defined by f(x) =-ax + b , where a and b are constants. In the xy-plane, the graph of y = f(x) -15 has a y-intercept at \( \left(0\ ,\ -\frac{99}{7}\right) \) . The product of a and b is \( \frac{65}{7} \). What is the value of a ?
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