Over which interval does the function in the graph increase the fastest?

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

Find the domain of the following expression: 1/(√x)-2

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°