Does the rule y = 2 · x + 4 represent a linear or an exponential function? explain. a. linear function; the function is in the form y = abx, where a ≠ 0, b > 0, b = ≠ 1 , and x is a real number. b. linear function; the independent variable x is not an exponent. c. exponential function; the function is in the form y = mx + b, where m = slope, b = y-intercept, and x is a real number. d. exponential function; the function is in the form y = abx, where a ≠ 0, b > 0, b = ≠ 1 , and x is a real number.

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.

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.