Answer:

Step-by-step explanation:
Rewrite the quadratic using the method of completing the square:

From this form it is immediately clear that the vertex of the parabola is at x=1 and its y-intercept at -6.
To find the percent decrease from Saturday to Tuesday, you will find the difference between the number of customers on those days and divided by the total number of customers on Saturday.
By dividing this you will get a decimal, which then can be converted to a percent.
80-17= 63
63/80 = 0.7875
0.7875 = 78.75%
There was a 78.75% decrease from Saturday to Tuesday.
Answer: Artists carried a special status in Renaissance society. They were respected; they were admired; they were practically worshiped.
Step-by-step explanation: High Renaissance (1475-1525) - A rising interest in perspective and space gave the art even more realism. Great artists such as Michelangelo, Leonardo da Vinci, and Rafael flourished during this period.
Y=mx+b or -2=-1 x 2+b, b= -2(-1)(2) b=0
Therefore the equation of the line is
y=-1x