Find the real numbers x and y that make the equation true.
- 7 = x - 
A. x = 18, y = -3
B. x = 10, y = -3
C. x = -4, y = -3
D. x = 10, y = 3
Answer: C
You might also like to view...
Identify all of the symmetries in the following figure.
A. It has reflection symmetries; it can be reflected across a vertical line through its center, a horizontal line through its center, or either of its diagonals, and its appearance remains the same. It also has rotation symmetries; it can be rotated through 90°, 180°, or 270°, and its appearance remains the same. B. It has rotation symmetries; it can be rotated through 90°, 180°, or 270°, and its appearance remains the same. It also has translation symmetry. C. It has reflection symmetries; it can be reflected across a vertical line through its center or a horizontal line through its center, and its appearance remains the same. It also has rotation symmetry; it can be rotated through 180° and its appearance remains the same. D. None of these.
Find the x-intercept(s) and the y-intercept of the function.f(x) = x3 + 2x2 - x - 2
A. (-1, 0), (1, 0), (0, -2) B. (-1, 0), (1, 0), (0, 2) C. (-1, 0), (1, 0), (-2, 0), (0, -2) D. (-1, 0), (1, 0), (-2, 0), (0, 2)
Find the vertex and axis of symmetry of the graph of the function.f(x) = -x2 + 10x
A. (-25, 5); x = -25 B. (25, -5); x = 25 C. (5, 25); x = 5 D. (-5, -25); x = -5
Use the x-intercepts to find the intervals on which the graph of f is above and below the x-axis.f(x) = (x + 2)3
A. above the x-axis: (-?, -2), (-2, ?) below the x-axis: no intervals B. above the x-axis: (-?, -2) below the x-axis: (-2, ?) C. above the x-axis: (-2, ?) below the x-axis: (-?, -2) D. above the x-axis: no intervals below the x-axis: (-?, -2), (-2, ?)