HURRY 50 POINTS Which of the points belong to the graph of the equation x–2y=4? A (6,1)
B (-6,-5)
C (0,-2)
D (-1,3)

It Is Show

Step-by-step explanation:

Given equation isx+2y=4

(i) Put the value x=0 and y=2 we get

0+2×2=4

⇒4=4

Then both sides are equal then (0,2) is the solution of equation x+2y=4

(ii) Put the value x=2 and y=0 we get

2+2×0=4

⇒2



=4

Then both sides are not equal then (0,2) is not the solution of equation

x+2y=4

(iii) Put the value x=4 and y=0 we get

4+2×0=4

⇒4=4

Then both sides are equal then (4,0) is the solution of equation x+2y=4

(iv)x+2y=4

Put x=

2

,y=−3

2

we get

2

+2(−3

2

)=4

⇒

2

−3

2

=4

⇒−2

2



=4

Then both sides are not equal then (

2

,−3

2

) is not the solution of equation

x+2y=4

(v) Put the value x=1 and y=1 we get

1+2×1=4

⇒3



=4

Then both sides are not equal then (1,1) is not the solution of equation

x+2y=4

(vi) Put the value x=-2 and y=3 we get

−2+2×3=4

⇒4=4

Then both sides are equal then (-1,3) is the solution of equation

x+2y=4

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

sorry i just need to anwers this to get points

step-by-step explanation: