Question

The area of the quadrilateral formed by the lines $y=2x+3,y=0,x=4$ and $x=6$ is

• A. $26$ sq. units
• B. $24$ sq. units
• C. $25$ sq. units
• D. $29$ sq. units

Answer 1

Answer: (A)

$26$ sq. units

$y=2x+3,y=0$
$\stackrel{6}{\underset{4}{\int }}(2x+3)dx=\frac{2x^2}{2}{|}_4^6+3x{|}_4^6$
$=20+3\left(2\right)$
$=26squnits.$