Question

Please help: first answer gets 99 pts

Write an equation for the line that passes through (4,-6) and (-7,-6). Is the line parallel or perpendicular to the y-axis?

Answer 1

you would have to find the slope first. y2-y1/x2-x1. the slope would be 4. Plug in one ordered pair into y=4x+b. so it would be -6=4(4)+b. b=-22. Your equation would be y=4x-22.

Answer 2

The equation of the line y = -3 is a horizontal line that passes through the y-axis at -3 and is parallel to the x-axis.

So, a line parallel to that line and passing through (-7,2) would be y = 2.

The line perpendicular to that line and passing through (-7,2) would be x = -7.

Explanation: