Z varies directly with x and inversely with y. When x = 6 and y = 2, z = 15. What is the value of z when x = 4 and y = 9?

45

20/9

72/5

135

Which system of linear inequalities is represented by the graph? + l tv x-3y > 6 and y > 2x o x + 3y > 6 and y o x-3y > 6 and y> 2x o x + 3y > 6 and y > 2x + 4 la +

What is the measure of angle tvu shown in the diagram below

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined