Work out the mean mark

Write the equation below the represents the line passing through the point (-3, -1) negative one with a slope of 4

In the following diagram it is given that dec, ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)