What is the practical domain of the function?

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?

Solve the system of equations using the linear combination method. {4x−3y=127x−3y=3 enter your answers in the boxes.