What is the slope of the line that contains the points (-1,8) and (5,-4)?

The formula to find slope is y₁ - y₂ / x₁ - x₂, where y₁, y₂, x₁, and x₂ are the x- and y-values, respectively, of two coordinates on a line.

The coordinates provided are (-1, 8) and (5, -4). Plug these values into the formula accordingly and simplify.

y₁ - y₂ / x₁ - x₂

8 - (-4) / -1 - 5

8 + 4 / -6

12 / -6

-2

The slope of the line that contains the points (-1, 8) and (5, -4) is -2.

the correct option is b

step-by-step explanation:

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)