Which of the following statements best describes the graph of -5x + 2y = 1? (4 points) O It is a curve joining the points (-5, 2), (2, 3), and (4,1).
O It is a curve joining the points (-1, -3), (-1, -3), and (1,5).
It is a straight line joining the points (1,3), (3,8), and (-3, -7).
It is a straight line joining the points (4, -3), (-1,2), and (-4, 5).

29.5977692753

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

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step-by-step explanation: