The letters x and y represent rectangular coordinates. Write the equation using polar coordinates (r, ?).y2 = 16x
A. sin2 ? = 16r2 cos ?
B. r sin2 ? = 16 cos ?
C. r2 sin2 ? = 16 cos ?
D. sin2 ? = 16r cos ?
Answer: B
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Find the x- and y-intercepts for the equation. Then graph it.4x - 12y = 12
A. (0, -1), (-3, 0)
B. (0, -1), (3, 0)
C. (0, -3), (1, 0)
D. (0, 3), (-1, 0)
Graph the numbers on a number line.- 3
, -1, 1, 3
A. 
B. 
C. 
D. 
Provide an appropriate response.Suppose that you are solving a system of 4 linear equations and 4 variables by the Gaussian elimination method. If you use the transformation -8R2 + R1, which row(s) of the augmented matrix will change?
A. Rows 2 and 1 B. Row 2 C. Row 1 D. No rows will change.
Graph the function on your calculator to determine the domain and range from the graph.h(x) = 
- 7
A. Domain: (-7, ?); range: (-?, ?) B. Domain: (-?, ?); range: [-7, ?) C. Domain: (-?, ?); range: (-7, ?) D. Domain: [-7, ?); range: (-?, ?)