(−2 − √3)(−2 + √3) simplified

1

Step-by-step explanation:

(- 2 - )(- 2 + )

each term in the second factor is multiplied by each term in the first factor.

- 2(- 2 + ) - (- 2 + ) ← distribute both parenthesis

= 4 - 2 + 2 - 3 ← collect like terms

= 1

the answer is b.

step-by-step explanation:

identity property is where 0+whatever number=whatever number. basically 0+ a number.

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)