4. (03.06) Choose the point-slope form of the equation below that represents the line that passes through the points (-3, 2) and (2, 1). (2 points)
O y + 3 = -5(x - 2)
Oy - 2 = -5(x + 3)
Oy + 3 = -(x - 2)
Oy -2=- 4(x + 3)

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

table 3 represents a direct variation function. : )