Answer:
6 C = 2+12r
7.y = .026x -.05
8.The slope is 5 and the y intercept is -2
9 x= 3
Step-by-step explanation:
6. The cost of the arrangement is the cost of the vase plus the cost of 12 roses
C = vase +12 roses
Each vase is 2 dollars and each rose costs r
C = 2+12r
7. We need to find the slope
m = (y2-y1)/(x2-x1)
=( 5.15 -1.25)/ (200-50)
(3.9)/150
.026
We know the slope and a point we can use point slope form
y-y1 = m(x-x1)
y -1.25 = .026(x-50)
Distribute
y-1.25 = .026x -1.3
Add 1.25 to each side
y-1.25+1.25 = .026x -1.3+1.25
y = .026x -.05
8. y = 5x-2
This is written in slope intercept form y= mx +b where m is the slope and b is the y intercept.
The slope is 5 and the y intercept is -2
9. The x value does not change in this vertical line. Vertical lines are x=
x= 3
