27. the scatter plot shows the number of votes cast in u. s. presidential elections since 1932.
votes cast in presidential elections
(52,93)
votes cast (in millions)
(24, 62)
24 32 60 48 56 64 72 so
years since 1932
which of the following is the best approximation for the number of votes cast in the 2012
presidential election based on a line of best fit for the data in the scatter plot that passes
through the labeled points?
a. 115 million
b. 125 million
c. 135 million
d. 145 million

1 and 2

step-by-step explanation:

d

step-by-step explanation:

given

y + 3 = - 4(x - 2) ← distribute the parenthesis

y + 3 = - 4x + 8 ( subtract 3 from both sides )

y = - 4x + 5 → d

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system