What is the orthocenter of the triangle below?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Aline that intersects one of two parallel lines intersects the other also always sometimes never

50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13