Use the x-values: 1, 2, 3, and 4 to write solutions of the equation y = 17x + 7 as ordered pairs. (1, 25), (2, 26), (3, 27), (4, 28) (24, 1), (41, 2), (58, 3), (75, 4) (1, 24), (2, 41), (3, 58), (4, 75) (25, 1), (26, 2), (27, 3), (28, 4)

~dasgupta/mathbook/append17dec2k8.pdf

u what ?

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