Pls help due in 15 Min The following stops are used to rewrite the polynomial expression (x + 4y + 2)(x-7).

Step 1: x(x - 7y) + 4y(x - 7y) + 2(x - 7y)

Step 2: x? - 7xy + 4yx - 28y + xx - 7xy

Step 3: x? - 7xy + 4xy - 28y + x2 - 7yz

Step 4: x? - 3xy - 28y2 + xx - 7yz

Identify the property used in each of the steps:

Step 1:

What property used

Step 2:

What property used

Step 3:

What Property used

3. parallelogram

step-by-step explanation:

we turn each of our sides into direction vectors

ab=b-a=(3 - 7, 1 - 0) = (-4, 1)

bc=c-b=(1,6)

cd=d-c=(4,-1)

da=a-d=(-1,-6)

we see how the opposite sides have negated direction vectors; this is characteristic of a parallelogram.   we have congruent sides ab=cd and bc=da with unequal lengths because 1^2+6^2 is different from (-4)^2+1^2.   so it's not a square or a rhombus.  

we check the dot product of direction vectors of adjacent sides.   we have

ab dot bc = -4(1) + 1(6) = 2

that's not zero so the sides are not perpendicular.   we've ruled out rectangle.

the direction vectors indicate two pairs of congruent parallel sides, so we choose parallelogram over trapezoid.

step-by-step explanation:

i hate black

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0