Answer:
y = 400x - 1200
Step-by-step explanation:
considering the linear equation y = mx + c
where y denotes number of items
x denotes item price
we have y = 2000 and x = $8 so we have now
2000 = m(8) + c ...... 1
now we have
y = 400 and x = $4
400 = m(4) + c .....2
from equation 1 and 2 we have
subtracting 2 from 1
1600 = 4m
m = 400
solving for c value
400 = 4m + c
400 = 4*400 + c
c = -1200
y = 400x - 1200
(x-8)*2/5=2
0.4x - 3.2=2
0.2x-1.6=1
0.2x=2.6
x=2.6*5
x=13
^_^
The 60 represents the rate at which the train is traveling in km per hour. So, I believe the answer would be D (sorry if this is wrong, to be honest I’m just using context clues)
Answer:
Step-by-step explanation:
Te equation of line is:
y = 3x + 12
Plug x = 0 in the above equation of line, we find:
y = 3*0 + 12
y = 0 + 12
y = 12
y-intercept = (0, 12)
Plug y = 0 in the equation y = 3x + 12
0 = 3x + 12
-3x = 12
x = 12/(-3)
x = - 4
x-intercept = (-4, 0)
Distance between x-intercept and y--intercept
