Answer:
hiii
Step-by-step explanation:
Answer:
f(x)=12x-5
Step-by-step explanation:
-5 is the y-intercept since f(1)=0
the difference from -5 and 7 (7-(-5) or 7+5) is 12 and 12/1 equals 12
Solution:
1) Solve for x in 3x+7y=-1
x=\frac{-1-7y}{3}
2) Substitute x=\frac{-1-7y}{3} into 4x-3y=11
\frac{4(-1-7y)}{3}-3y=11
3) Solve for y in \frac{4(-1-7y)}{3}-3y=11
y=-1
4) Substitute y=-1 into x=\frac{-1-7y}{3}
x=2
5) Therefore,
x=2
y=-1
Done!
No, it would be $360 final price
Because 720 is the price raised 50% higher from 480
When discounted 50% from 720 the 50% is 360
So $360