How do i solve this?

Which statement describes surface features called maria on the moon

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

Look at the hyperbola graphed below. the hyperbola gets very close to the red lines on the graph, but it never touches them. which term describes each of the red lines? o o o o a. asymptote b. directrix c. focus d. axis