Find the center and radius of the circle and sketch its graph.(x - 4)2 + (y + 4)2 = 7
A. (h, k) = (4, -4), r = 
B. (h, k) = (4, -4), r = 7
C. (h, k) = (-4, 4), r = 7
D. (h, k) = (-4, 4), r = 
Answer: A
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Replace the variable as indicated and decide whether the given number is the solution.19 = d - 6; replace d with 25
A. 19 = 19; Yes B. 15 = 19; No
Solve the equation by expressing each side as a power of the same base and then equating exponents.4x + 4 = 8x - 9
A. {13} B. {35} C. {17} D. {31}
Graph the parabola and give its vertex, axis, x-intercepts, and y-intercepts.f(x) = -x2 - 4x - 3
A. vertex (-2, -1); axis is x = -2;
x-intercepts are -1 and - 3; y-intercept is 3
B. vertex (2, 1); axis is x = 2;
x-intercepts are 1 and 3; y-intercept is -3
C. vertex (2, -1); axis is x = 2;
x-intercepts are 1 and 3; y-intercept is 3
D. vertex (-2, 1); axis is x = -2;
x-intercepts are -1 and - 3; y-intercept is -3
Multiply.
A. 49,600 B. 5,456 C. 54,560 D. 545,600