The measures of two angles in this acute triangle are 78° and 35°.

what is the measure of the third angle?

First! we must remember that a triangle always equals 180°

If we have two angles then all we have to do is subtract.

180° - 78° - 35° = 67°

So your missing angle is 67°

y = - 6

step-by-step explanation:

given the point (- 2, y) lies on the graph then it is a solution of it's equation.

substitute x = - 2 into the equation for value of y

y = 3(- 2) = 3 × - 2 = - 6

the point on the graph is (- 2, 6)