Find the product of (–d + e)(4e + d). Which statements are true? Check all that apply.

There are 2 terms in the product.
There are 3 terms in the product.
There are 4 terms in the product.
The product is degree 1.
The product is degree 2.
The product is degree 4.

a. the residual plot for model 1 has a random pattern and is a good fit for the data.

answer: i don't understand. what are the options

step-by-step explanation:

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)