A right angle has one 90° angle, and the sum of the angles of any triangle is always equals 360°.
<span>ABCD is a quadrilateral with angle ABC a right angle. The point D lies on the perpendicular bisector of AB. The coordinates of A and B are (7, 2) and (2, 5) respectively. The equation of line AD is y = 4x − 26. find the area of quadrilateral ABCD</span>
The expression -8ab evaluates to -12 when a=1/4 and b=6.
Step-by-step explanation:
Given values are;
a = 
and b = 6
Expression to evaluate;
- 8ab
We will put values of a and b in expression;
The expression -8ab evaluates to -12 when a=1/4 and b=6.
Keywords: expression, multiplication
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Equation of line is y = mx +b
Passing through (-3,7 )
X= -3, y= 7
plug in these
7 = -3m + b ... .Eq1
Also X = 4 , y= 10
10 = 4m + b ............... Eq 2
Solve Eq 1 and Eq 2 for m and b
m= 3/7
b= 58/7
Thus y =( 3/7) X + 58/7 is equation of line
0r 7y = 3X +58
