Answer:
<em>The correct option will be: Rectangle C (Width= 6 and Length= 10)</em>
Step-by-step explanation:
Suppose, the length of the original photograph is 
inches and width is 
inches.
Hiroto reduces the photograph by 0.5 by scanning it onto his computer.
So, the <u>length of the scanned image</u> 
inches <u>and width</u> 
inches.
Given that, the length and width of the image on the screen are 5 inches and 3 inches respectively. That means.........
So, the rectangle 
represents the original photograph, which has width as 6 inches and length as 10 inches.
The vertex is when x=-b/2a, which is also the line of symmetry.
in this case, b=6, a=3, so x=-6/6=-1
when x=-1. y=3-6-1=-4
another way to do it is to write the equation into vertex form by making a square:
3x²+6x-1
3(x²+2x-1/3)
3(x²+2x+1-1-1/3))
3(x²+2x+1-4/3))
notice the bold part makes a square:
3(x+1)²-4
Either way,
the vertex is (-1, -4)
the axis of symmetry is x=-1
the coefficient of x² is 3, a positive number, so this parabola opens upward. the function has a minimum value of y=-4
the range is all real number larger than -4
Multiply 12 and 3 and you will get four. four is like 1 over 4: 1/4
The factors of 448 include: <span>1,2,4,7,8,14,16,28,32,56,64,112,224,448</span>
I think it is B because it isn’t a solid line and it’s going up
