Yes the domain represents the X vales and range represents the Y values
Try drawing the triangles: the original and the dilated one.
If the tangent of x is 4/3, and then all lengths of the original triangle are doubled, then the tangent of x is 8/6 = 4/3. Thus, B is the correct answer.
Your answer would be 74 if you are looking for the answer.
The two triangles are congruent it two sides and the included angle of one triangle are respectively equal to two sides and angle of the other triangle
