Solve for x. x2 − x − 12 = 0 a) x = −2 or x = 6 b) x = 2 or x = −6 c) x = −4 or x = 3 eliminate d) x = 4 or x = −3

D) x = 4 or x = −3

Step-by-step explanation:

x^2 − x − 12 = 0

Factor

What 2 numbers multiply to -12 and add to -1

-4*3 = -12

-4+3 = -1

(x-4) (x+3) =0

Using the zero product property

x-4 =0   x+3 =0

x=4  x=-3

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step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)