What is the output of the following function for x= 1? F(x) = -x^3 - 2x^2+7 x-10
A.-5
B.6
C.0
D.-6​

D.-6

Step-by-step explanation: -(1)^3-2(1)^2+7(1)-10

D

Step-by-step explanation:

For an input of x = 1 , f(1) is the output.

Substitute x = 1 into f(x) , that is

f(1) = - 1³ - 2(1)² + 7(1) - 10 = - 1 - 2 + 7 - 10 = - 6 → D

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

rotation point l

step-by-step explanation: