If m = 6, then the expression is equal to
Answer(s): B
Substitute 6 for m:
The expression can be reduced to
Answer(s): D
Factor the numerator and denominator of the fraction:
Which of the following is the vertex of the parabola which is the graph of the equation
Answer(s): C
The equation of a parabola with its turning point c units to the left of they-a xis is written as y=(x + c)2. The equation of a parabola with its turning point d units above the x-axis is written as y= x2+d. The vertex of the parabola formed by the equation y = (x+1)2+2is found one unit to the left of they-a x is and two units above the x-axis, at the point (1, 2). Alternatively, test each answer choice by plugging the x value of the choice into the equation and solving for y. Only the coordinates in choice c, (-1, 2, represent a point on the parabola(y = (x+1)2+2, 2=(-1+1)2+2, 2 = 02+2, 2=2, so it is the only point of the choices given that could be the vertex of the parabola.
is equivalent to
Answer(s): A
When a base is raised to a fractional exponent, raise the base to the power given by the numerator and take the root given by the denominator. Raise the base, a, to thebth power, since b is the numerator of the exponent. Then, take theth rooth of that:
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