Provide an appropriate response.Explain why the solution of a system of equations is the point of intersection of the graphs of the equations.
What will be an ideal response?
Each point on the graph corresponds to an ordered pair that is a solution of the equation. The point of intersection of the graphs of two lines corresponds to an ordered pair that is a solution of both equations and, hence, a solution of a system of equations.
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Either the dimensions of two matrices or the matrices themselves are given. Find the dimensions of the product AB and the product BA. If either is not defined, say so.A = 
; B = 
.
A. AB is 2 × 2; BA is 1 × 1. B. AB is not defined; BA is 2 × 2. C. AB is 1 × 1; BA is not defined. D. AB is 1 × 1; BA is 2 × 2.
Determine if the equation is a proportion.
A. Yes B. No
Write the equation in slope-intercept form, state the slope and y-intercept, and graph the equation.x - 4y = -12
A. y = 
x + 3;
slope: 
, y-intercept (0, 3)
B. y = - 
x - 3;
slope: - 
, y-intercept (0, - 3)
C. y = - 
x + 3;
slope: - 
, y-intercept (0, 3)
D. y = 
x - 3;
slope: 
, y-intercept (0, - 3)
Simplify the expression.(5.7)(100) - (5.7)(10)
A. 90 B. 0 C. 513 D. 564.3