Find the equation of a line with the given information:
Through the (1,7)\displaystyle {\left({1},{7}\right)} and (7,17)\displaystyle {\left({7},-{17}\right)}.

Write your answer in point-slope form. If your answer is a vertical line, type your answer as `x=#`, and if your answer is a horizontal line, type your answer as `y=#`.
 

Write your answer in slope-intercept form. If your answer is a vertical line, type your answer as `x=#`, and if your answer is a horizontal line, type your answer as `y=#`.