What are the solutions of this system of equations? The first three steps in determining the solution set of
the system of equations algebraically are shown in the
table.
y=-x2+2x - 9
ya-6x + 6
(5.-24) and (3, -12)
(5, 36) and (3, 24)
(-5, -24) and (-3, 12)
(-5, 36) and (-3, 24)
Step
1
2
3
Equation
-x2+2x-9--6x+6
0 = x? - 8x + 15
0 = (x - 5)(x-3)

the solution is 12x-6y

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step-by-step explanation:

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step-by-step explanation:

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a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional