the manager of a small computer store wants to know if customers are buying more laptop computers (l) or desktop computers (d). the sales figures for one week are shown in the table.
day of the week number of laptops sold number of desktops sold
monday 5 2
tuesday 8 1
wednesday 7 2
thursday 9 3
friday 7 4
the manager makes a scatter plot along with the best straight line that passes through (0, 0). what does the graph show?
a) more desktops are being sold than laptops.
b) on average, about 5 laptops are sold for each desktop.
c) on average, between 2 and 3 laptops are sold for every desktop.
d) there is no relation between the number of laptops sold and the number of desktops sold.

after simplifying it i got: -36.25 as my answer. hope that !

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

step-by-step explanation:

18 units²

step-by-step explanation:

first let's find altitude bd using the distance formula

d = √((y₂ - y₁)² + (x₂ - x₁)²)

bd = √((0 - -3)² + (0 - 3)²)

bd = √18

given the placement of points a and c, we can denote that point d bisects segment ac.

we will call ac the base.

using the distance formula

ac = √((0 - 6)² + (-6 - 0)²)

ac = √72

knowing our base and our height, we can plug these into our triangle area formula

area = (b * h)/2

area = (√18 * √72) / 2

area = (√1296) / 2

area = 36 / 2

area = 18 units²