Answer:
When a quadratic equation's x^2 coefficient is positive, its graph is "U-Shaped" and has a minimum.
Of the equation's listed, the only equation that has a "U-Shaped" graph and would have a minimum is C or 3x^2 +2x -7.
Source: http://www.1728.org/quadr3.htm
Step-by-step explanation:
Answer:
3x + 2y = 12
Step-by-step explanation:
The standard form is expressed as Ax + By = C
Answer:
Refer to the attachment 
Step-by-step explanation:
<h3><u>Diagram</u><u>:</u><u>-</u></h3>

<h3><u>Note</u><u>:</u><u>-</u></h3>
View the ans from Web for complete diagram.
Answer:
The slope of the linear equation will be 60 and the point on the line will be (6,1250).
R - 1250 = 60(y - 6)
Step-by-step explanation:
An apartment lease states that the rent will go up by $60 each year. The rent in the 6th year is $1250.
Therefore, the slope of the linear equation will be 60 and the point on the line will be (6,1250).
Now, the point-slope form of the linear equation which models the rent (R(y)) in terms of how many years (y) the tenants have lived there will be
R - 1250 = 60(y - 6) (Answer)