What do you mean by without calculating?
Y = 3x -1. Y = 3x - 1
(-3) Y = x - 7. -3y = -3x + 21
-2y = 20
-2. = -2
Y = - 10
Y = 3x - 1
-10 = 3x - 1
+ 1. + 1
-9. = 3x
3. 3
-3 = x
(-3,-10)
Answer:
No
Step-by-step explanation:
For x and y to have a proportional relationship, then
the ratio of k = must be equal for all points
(2, 5) → k = = 2.5
(3, 7.5) → k = = 2.5
(5, 12.5) → k = = 2.5
(18, 8) → k = = 2.25 ≠ 2.5
k is not equal for all values , hence no proportional relationship exists
Answer:
so whats the question??
Step-by-step explanation:
do you want us to add, subtract, multiply, divide...what..?