Completeing The Square Cred

8 September 2022
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50 test answers

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question
Use completing the square to solve for mc024-1.jpg in the equation mc024-2.jpg.
answer
c x = 1 + 89
question
Solve for mc022-1.jpg in the equation mc022-2.jpg.
answer
d x= 1 + 47
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Solve for mc018-1.jpg in the equation mc018-2.jpg.
answer
a x = 2 + 42
question
Which value must be added to the expression x2 + 16x to make it a perfect-square trinomial?
answer
64
question
Solve for mc010-1.jpg in the equation mc010-2.jpg.
answer
x = -16 or x -4
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Solve for mc011-1.jpg in the equation mc011-2.jpg.
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x = -1 + 17
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What are the solutions of the equation mc028-1.jpg?
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x = 3 or -7
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Solve for mc019-1.jpg in the equation mc019-2.jpg.
answer
x -7 +8i
question
Amira is solving the equation x2 - 6x = 1. Which value must be added to both sides of the equation to make the left side a perfect-square trinomial?
answer
9
question
Solve for mc016-1.jpg in the equation mc016-2.jpg.
answer
x 5+ 35
question
The graph of an equation with a negative discriminant always has which characteristic?
answer
no x-intercept
question
What is the discriminant of 3x2 + 6x = 2?
answer
60
question
Using the quadratic formula to solve x2 = 5 - x, what are the values of x?
answer
a
question
Which equation could generate the curve in the graph below?
answer
y = 3x2 - 2x + 1
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If the discriminant of a quadratic equation is equal to mc027-1.jpg, which statement describes the roots?
answer
There are two complex roots.
question
Which equation could generate the curve in the graph below?
answer
y = -2x2 - 16x- 28
question
What is the discriminant of 9x2 + 2 = 10x?
answer
28
question
Which equation has the solutions mc012-1.jpg?
answer
x2 + 3x + 3 = 0
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Which equation shows the quadratic formula used correctly to solve 7x2 = 9 + x for x?
answer
d
question
Which equation can be solved using the expression mc003-1.jpg for x?
answer
2 = 3x + 10x2
question
Christian is rewriting an expression of the form y = ax2 + bx + c in the form y = a(x - h)2 + k. Which of the following must be true?
answer
the value of a remains the same
question
What is the first step when rewriting y = 6x2 + 18x + 14 in the form y = a(x - h)2 + k?
answer
6 must be factored from 6x2 + 18x
question
Which pair of equations generates graphs with the same vertex?
answer
y = -4x2 and y = 4x2
question
Which phrase best describes the translation from the graph y = 6x2 to the graph of y = 6(x + 1)2?
answer
1 unit left
question
Which equation has a graph that is a parabola with a vertex at (-2, 0)?
answer
y = (x + 2)2
question
Which equation is y = (x + 3)2 + (x + 4)2 rewritten in vertex form?
answer
b
question
What is the first step when rewriting y = 3x2 + 9x - 18 in the form y = a(x - h)2 + k?
answer
3 must be factored from 3x2 + 9x
question
Which phrase best describes the translation from the graph y = 2(x - 15)2 + 3 to the graph of y = 2(x - 11)2 + 3?
answer
4 units to the left
question
Which equation has a graph that is a parabola with a vertex at (5, 3)?
answer
y = (x - 5)2 + 3
question
Which equation has a graph that is a parabola with a vertex at (-1, -1)?
answer
y = (x + 1)2 - 1
question
If mc016-1.jpg, which inequality can be used to find the domain of f(x)?
answer
c
question
Which equation is the inverse of y = 16x2 + 1?
answer
d
question
Which equation is the inverse of y = 100 - x2?
answer
a
question
If fx = x-3, which inequality can be used to find the domain of f(x)?
answer
b
question
Which equation can be simplified to find the inverse of y = 2x2?
answer
d
question
What is the domain of the function y=sqr x+6-7
answer
b
question
Which equation can be simplified to find the inverse of y = 5x2 + 10?
answer
a
question
What is the domain of the square root function graphed below?
answer
d
question
Which equation is the inverse of 5y+4=(x+362+1/2
answer
d
question
What is the domain of the square root function graphed below?
answer
d
question
What are the solutions of the following system? -5
answer
c
question
Pablo graphs a system of equations. One equation is quadratic and the other equation is linear. What is the greatest number of possible solutions to this system?
answer
2
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The vertex of a parabola is in the first quadrant of a coordinate grid. A line with a negative slope passes through the origin. If the parabola and line intersect at the origin, which statement must be true?
answer
The parabola opens downward.
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Which equation could be used to solve the following system?
answer
4(11 - y)2 - 3y2 = 8
question
Consider the following system of equations.
answer
The graphs of the equations intersect each other at two places.
question
Which graph shows the system mc021-1.jpg?
answer
a
question
How many solutions exist for the mixed-degree system graphed below?
answer
2
question
Which system is equivalent to mc005-1.jpg? y=x-2
answer
c
question
Parabola A can be represented using the equation (x + 3)2 = y, while Line B can be represented using the equation y = mx + 9. Isabel determines one solution to the system of two equations must always pass through the vertex of Parabola A.
answer
c. Isabel is incorrect because the point of intersection between Line B and Parabola A that can be determined is the y-intercept of the functions, not necessarily the vertex.
question
How many solutions exist for the mixed-degree system graphed below?
answer
1