Solve the system to the nearest 0.1 for each variable by using a graphing calculator.-4.7x - 3.9y = -3.92.4x = -3.0y + 2.3
A. x = 0.3; y = 0.5
B. x = 0.8; y = 0.0
C. x = 0.9; y = 0.1
D. x = 0.6; y = 0.3
Answer: D
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The graph of a polar equation is given. Select the polar equation for the graph.
A. r = 4 sin ? B. r = 4 cos ? C. r = 2 + cos ? D. r = 2 + sin ?
The graph of a polynomial function 
is given.
?
?
(a) From the graph, find the x-intercept(s).
?
x = __________
?
(b) From the graph, find the y-intercept(s).
?
y = __________
?
(c) From the graph, find the coordinates of all local maxima.
?
(d) From the graph, find the coordinates of all local minima.
What will be an ideal response?
List the intercepts and type(s) of symmetry, if any.y2 = x + 4
A. intercepts: (0, 4), (2, 0), (-2, 0) symmetric with respect to y-axis B. intercepts: (4, 0), (0, 2), (0, -2) symmetric with respect to x-axis C. intercepts: (-4, 0), (0, 2), (0, -2) symmetric with respect to x-axis D. intercepts: (0, -4), (2, 0), (-2, 0) symmetric with respect to y-axis
Given the matrices A and B, find the matrix product AB.A = 
, B = 
Find AB.
A. 
B. 
C. 
D. 