The graph of a one-to-one function f is given. Draw the graph of the inverse function f-1 as a dashed line or curve.f(x) = 2x
A. 
B. 
Answer: A
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Solve the system of linear equations using matrices.
A. (-2, 1) B. (1, -2) C. ? D. (-1, 2)
Graph the quadratic equation. Identify the vertex and the intercept points with their coordinates.y = x2 - 4
A. Vertex: (0, -4);
x-intercepts: none;
y-intercept: (0, -4)
B. Vertex: (0, -4);
x-intercepts: (-2, 0) and (2, 0);
y-intercept: (0, -4)
C. Vertex: (0, 4);
x-intercepts: none;
y-intercept: (0, 4)
D. Vertex: (-4, 0);
x-intercept: (-4, 0);
y-intercept: (0, 16)
Graph the ellipse and locate the foci.16x2 + 4y2 = 64
A. foci at (2
, 0) and (-2
, 0)
B. foci at (0, 2
) and (0, -2
)
C. foci at (
, 0) and (-
, 0)
D. foci at (2
, 0) and (-2
, 0)
Translate the verbal phrase into a mathematical expression. Use x to represent the unknown number.Some number increased by 62
A. x + 62 B. 62x C. x - 62 D. 62