Question

I. Try These! Classifying Examples. Put a check mark beside the number if the statement is a quadratic inequality, otherwise put a cross mark. If the statement is a quadratic inequality, identify if it uses one or two variables. 1) $y = 3x - 1$ 2) $3x^2 - 2x + 5 < 0$ 3) $y = x^2 - 1$ 4) $(2x - 1)(x + 5) \ge y$ 5) $y > -2(x - 3)^2$ 6) $(x - 1)(x + 2) = x^2 - x$ 7) $x^2 \le 2x + 3$ 8) $y < 2x - 5$ 9) $(x - 1)(x + 1) < 0$ 10) $y \ge x^2 - 3x - x^3$

          I. Try These!
Classifying Examples. Put a check mark beside the number if the statement is a quadratic inequality,
otherwise put a cross mark. If the statement is a quadratic inequality, identify if it uses one or two
variables.
1) $y = 3x - 1$
2) $3x^2 - 2x + 5 < 0$
3) $y = x^2 - 1$
4) $(2x - 1)(x + 5) \ge y$
5) $y > -2(x - 3)^2$
6) $(x - 1)(x + 2) = x^2 - x$
7) $x^2 \le 2x + 3$
8) $y < 2x - 5$
9) $(x - 1)(x + 1) < 0$
10) $y \ge x^2 - 3x - x^3$

I. Try These!
Classifying Examples. Put a check mark beside the number if the statement is a quadratic inequality,
otherwise put a cross mark. If the statement is a quadratic inequality, identify if it uses one or two
variables.
1) y = 3x - 1
2) 3x^2 - 2x + 5 < 0
3) y = x^2 - 1
4) (2x - 1)(x + 5) ≥ y
5) y > -2(x - 3)^2
6) (x - 1)(x + 2) = x^2 - x
7) x^2 ≤ 2x + 3
8) y < 2x - 5
9) (x - 1)(x + 1) < 0
10) y ≥ x^2 - 3x - x^3

Added by Diego O.

Elementary and Intermediate Algebra

Alan S. Tussy, R. David Gustafson 5th Edition

Instant Answer

Solved by Expert Breanna Ollech

Step 1

Cross mark. S) y > -2(x - 3)^2 - This is a quadratic inequality with one variable. Check mark. Show more…

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Put a check mark beside the number if the statement is a quadratic inequality. Otherwise, put a cross mark. If the statement is a quadratic inequality, identify if it uses one or two variables. D) y = 3x - 1 S) y > -2(x - 3)^2 9) (x - 1)(x + 1) < 0 2) 3x^2 + 2x + 5 < 0 6) (x - 2)(r + 2) = x^2 - x 10) y 2x^2 - 3x - x^3 3) y = x^2 - 1 7) x^2 < 2x + 3 4) (2x - D)(x + 5) zy 8) y < 2x - 5