Justin and Kane are members of different video game libraries. Justin pays a $65 membership fee and $8 for each video game he rents. The following function shows the total amount of money, y, in dollars, that Kane pays for renting x number of video games. y = 7x + 50. How many more dollars does Justin pay for a membership fee than Kane? (1 point) $15 $42 $58 $65

J=8x+65 and K=7x+50

65-570=$15

Step-by-step explanation:

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