<span>You do need the slope. It's not obvious in "Standard Form".
Ax + By = C ==> y = -(A/B)x + (C/B)
There's your slope to compare. Find -A/B for each.
3x + 2y = 4 ==> Slope = -3/2
6x + 4y = 5 ==> Slope = -6/4 = -3/2
3x + y = 4 ==> Slope = -3
The top two examples COULD be parallel. If the constant is the same, that's a bit sneaky because they are really the SAME line. That's not really parallel.</span>
Hhhhmmmmm...
13.50 for food
2.40 for drink
Since there is a voucher for 1/3 of food,
13.50 multiplied by 1/3 is 4.5 which is the discount
13.50-4.5=9
9 is the final cost for the food.
Add 9 to 2.40 for the drink which results in a total of 11.40
To find the amount charged for service you multiply 11.40 by .15
11.40 × .15 = 1.71
You add 1.71 to 11.40
The total is 13.11
Answer:
Rise/run rise over run
Step-by-step explanation:
y2-y1/x2-x1
