The graphs of y − 2x = 1, 4x + y = 7, and 2y − x = −4 contain the sides of triangle. find the coordinates of the vertices of the triangle.

Determine whether the graphs of y=8x+5 and -y=8x-5 are parallel, perpendicular, coincident, or none of these. a. coincident b. parallel c. perpendicular d. none of these

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?