Answers FL-1200700-Mathematics for College Algebra MISInequalities

Inequalities — Test Answers

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Which graph can be used to find the solution(s) to x2 – 4x + 4 = 2x + 1 + x2?

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What are the two solutions of 2x2 = –x2 – 5x – 1?

the y-coordinates of the intersection points of the graphs of y = 2x2 and y = –x2 – 5x – 1

the x-coordinates of the x-intercepts of the graphs of y = 2x2 and y = –x2 – 5x – 1

the x-coordinates of the intersection points of the graphs of y = 2x2 and y = –x2 – 5x – 1

the y-coordinates of the y-intercepts of the graphs of y = 2x2 and y = –x2 – 5x – 1

Trey graphs the equations y = –x2 + 2x + 3 and y = x2 – 2x + 3 to solve the equation –x2 + 2x + 3 = x2 – 2x + 3. His graph is shown below.What are the solution(s) of –x2 + 2x + 3 = x2 – 2x + 3?

–1 and 3

0 and 2

What are the two solutions of x2 – 2x – 4 = –3x + 9?

the y-coordinates of the y-intercepts of the graphs of y = x2 – 2x – 4 and y = –3x + 9

the x-coordinates of the x-intercepts of the graphs of y = x2 – 2x – 4 and y = –3x + 9

the y-coordinates of the intersection points of the graphs of y = x2 – 2x – 4 and y = –3x + 9

the x-coordinates of the intersection points of the graphs of y = x2 – 2x – 4 and y = –3x + 9

Heather is solving an equation by graphing the expressions on either side of the equal signs. If the graph intersects at an infinite number of points, which statement could describe the equation Heather is attempting to solve?

One side of the equation is a constant, and the other side of the equation is a linear expression.

One side of the equation is a linear expression, and the other side of the equation is a quadratic expression.

One side of the equation is a constant, and the other side of the equation is a quadratic expression.

One side of the equation is a quadratic expression, and the other side of the equation is a quadratic expression.

What is the solution of 3x + 5 = 2x – 7?

the x-coordinates of the intersection point of the lines y = 3x + 5 and y = 2x – 7

the x-coordinates of the x-intercepts of the lines y = 3x + 5 and y = 2x – 7

the y-coordinate of the intersection point of the lines y = 3x + 5 and y = 2x – 7

the y-coordinates of the y-intercepts of the lines y = 3x + 5 and y = 2x – 7

Which system of equations can be graphed to find the solution(s) to x2 = 2x + 3?

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Which graph can be used to find the solution(s) to x2 – 1 = x + 1?

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Tiffany is solving an equation where both sides are quadratic expressions. She sets each quadratic equation equal to y and graphs the resulting system. If the graph of one quadratic opens upward and the other opens downward, what is the greatest possible number of intersections for these graphs?

none

one

two

infinitely many

Fran graphs the equations and . Her graph is shown below. Which value is a solution of ?