What is the slope of the line that passes through the pair of points #A(-2, -4), B(2, 4)#?
1 Answer
Slope = 4
Explanation:
Remember that Slope can also be expressed as
Our two Y values are -4 and 4 (remember that each point is (x,y). To find the CHANGE we'll subtract
That's our change in Y
Our two X values are -2 and 2 (remember that each point is (x,y). To find the CHANGE we'll subtract
That's our change in X
Next step is to put them into our
Last, we need to simplify, remember that our two negatives will cancel out in the first step.
If you only have a negative in the numerator your answer will be negative! This just means the line is descending on the graph when tracing is left to right.