## Intermediate Algebra for College Students (7th Edition)

$(4,\frac{1}{2})$.
The midpoint $M$ of the line segment from $P_1(x_1,y_1)$ to $P_2(x_2,y_2)$ is: $(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$. Hence: $M=(\frac{7+1}{2},\frac{2-1}{2})=(4,\frac{1}{2})$.