SOLUTION: Find a function that models the area a of a rectangle whose length is 9ft more than twice its width x

Question 820963: Find a function that models the area a of a rectangle whose length is 9ft more than twice its width x
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
---
a(x) = x(2x + 9)
---
answer:
a(x) = 2x^2 + 9x
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
RELATED QUESTIONS
Find a function f that models the area of a rectangle if the width of the rectangle is 5... (answered by solve_for_x)

FIND THE WITDTH OF A RECTANGLE WHOSE WIDTH IS 1 MORE THAN TWICE ITS LENGTH AND WHOSE... (answered by algebrahouse.com)

expression for the perimeter of a rectangle whose length is 5 more than twice its... (answered by EdenWolf)

What is the area of a rectangle whose width is 6 units more than its... (answered by josgarithmetic)

Algebraic formula(The area of a rectangle whose length is 4 ft more than its width? (answered by solver91311)

the length of a rectangle is 5 more than twice its width . its perimeter is 70 units.... (answered by JBarnum)

Find the area of a rectangle whose length is five less than four times its width and... (answered by josgarithmetic,MathTherapy)

Find the area of a rectangle whose length is 6 inches less than 5 times the width and... (answered by solver91311)

the length of a rectangle is 9ft longer than twice the width. if the perimeter is 114 ft, (answered by mathstutor494)