The graph below shows the cost of pens based on the number of pens in a pack. What would be the cost of one pen? $0.57
$1.75
$5.50
$6.50

$1.75

Step-by-step explanation:

(2,3.5) (4,7) pick two points

y=kx+m or y=mx+b

k=y2-y1/x2-x1

7-3.5=3.5

4-2=2

3,5/2=1.75

y=1.75x+m

7=1.75×4+m

m=0

The equation will be y=1.75x+0

we want to know what 1 pen cost

y=cost

x=number of pens

y=1.75×1+0

y=1.75

81 seats

step-by-step explanation:

if you multiply 0.65 times 125 then you get 81.5 seats. well since you can't have half of a seat you have to round down and get 81 seats in the no children zones. that leave 44 seats outside of the no children zone.

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )