<span>9x(2+y)multiply 9x by everything inside parenthesis:</span>
<span>9x*2 = 18x</span>
<span>9x*y = 9xyso you have 18x +9xy</span>
<span> 2 of the equations are similar:</span><span>18x+(9x⋅y) </span><span>(9x⋅2)+(9x⋅y) 1</span>
We are given coordinates of A, B, C and D :
A(2, 4), B(9, 8), C(-1, 2), and D(3, -5).
Now, we need to find the slopes of AB and CD.
Slope of AB is :
.
Slope of CD is:
<em>Slope of CD is negative reciprocal of slope of slope of AB. </em>
Answer:
2.13 x 10^-3
Step-by-step explanation: