The temperature at 7 a. m. was -11°C. The temperature increased by 9°C during the day and then decreased by 4°C at 8 p. m. Which was the temperature at 8 p. m.?

Find the equation of a line that is perpendicular to line g that contains (p, q). coordinate plane with line g that passes through the points negative 3 comma 6 and 0 comma 5 3x − y = 3p − q 3x + y = q − 3p x − y = p − q x + y = q − p