The equation of a line is given by y = mx + c; where m is the slope and c -s the y-intercept.
therefore required equation is y = 3x + 4
Answer:
x+2y=- 7
x-2y =9
Step-by-step explanation:
Solving Steps
2x+4y=-14
x-2y=9
Divide both sides
(2x+4y) ÷2=-14=2
{x-2y=9
Remove the parentheses
Divide
2x÷2+4y÷2=-7
x-2y =9
Divide
Solution
x+2y=- 7
x-2y =9
From what I understand, a sales tax is making a customer pay more. therefore if your charging 8% more, the price is being increased by 8%. For example: 8% of $300 is $24. So the actual price would be $324, with a 8% sales tax. therefore it is a 8% increase