8. The graph shows a relationship between two quantities. 2000
PLAN:
1800
1600
1400
Identifsit where it
crosses the y-axis
Calculate the rate
1200
1000
800
600
Write heation of the le
400
y=1/2x
200
y=mx +6
O
Which equation best represents the relationship between the variables?
a. Y = -1600x + 200
b. y = -200x + 100
c. y = 200x + 2000
d. y = -200x +1600

17

step-by-step explanation:

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110