Find the slope of the line that goes through: (-1, -12) and (9, 68)

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

What number is 7 units left of -15?