<span>x^2 = 81
x = </span>±√81
x = ±9<span>
x^2 = -9 no solutions
x^2 = 20
x = </span>±√20
x = <span>±2</span>√5<span>
</span>
<span>
</span>
Ok I think it means that the length
of the rectangle is 2 m more than is width
...
The area is A=
so:
Solving this equation (using the quadratic formula) you get 2 solutons. The only acceptable is the positive one, i.e.
, the length will then be
.
Intersect with x axis indicates that x value would be Zero
Thus when x = 0
y would be
y = -18
Therefor intersection would be at (0,-18)
Answer:
Step-by-step explanation:
See the attached image
Answer:
x,y - x,y-4
Step-by-step explanation:
x coordinates of a and b remain same but their y coordinates become -4
