Write the vertex form of the equation of the parabola shown in the given graph. Assume a = ±1.
A. y = (x - 4)2 - 1
B. y = -(x - 4)2 - 1
C. y = (x + 4)2 - 1
D. y = (x - 4)2 + 1
Answer: A
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Use the graph to determine how close x must be to x0 in order that f(x) is within ? of L. Your answer should be of the form "If x is within ___ of ___, then f(x) is within ____ of ___ ."
A. If x is within 0.0427 of 2, then f(x) is within 0.25 of 
.
B. If x is within 0.3875 of 2, then f(x) is within 0.25 of 
.
C. If x is within 0.3125 of 2, then f(x) is within 0.25 of 
.
D. If x is within 0.25 of 2, then f(x) is within 0.3875 of 
.
Solve the equation.36 = 5y + y
A. -5 B. -6 C. 6 D. 5
Write the expression in the standard form a + bi.i19
A. -i B. i C. -1 D. 1
Write the number in scientific notation.411,270
A. 4.1127 x 101 B. 4.1127 x 105 C. 4.1127 x 10-5 D. 4.1127 x 106