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Quadratic or Not?

English 10 Public

Identify the following functions of it is a quadratic or not.

Study Slideshow

3s + 21 = 0

Not Quadratic

15

5t + 7 = 0

Not Quadratic

15

8k – 3 = 0

Not Quadratic

15

9 – 4x = 0

Not Quadratic

15

2m²– 8m = 0

Quadratic

15

r²+ 8r + 16 = 0

Quadratic

15

x²– 2x – 3 = 0

Quadratic

15

x²– 5x + 3 = 0

Quadratic

15

r²- 16 = 0

Quadratic

15

4x²+ 4x + 1 = 0

Quadratic

15