3
QuizMultiple Choice

Quadratic Functions and Equations — Test

Question 3 • CMS 2026-2027 NC Math 1 CREDIT RECOVERY

Which equations can be used to find the lengths of the legs of the triangle? Choose three correct answers.

Answer
A
x squared plus 2 x minus 24 is equal to 0
B
x times open paren x plus 2 close paren is equal to 24
C
x squared plus open paren x plus 2 close paren squared is equal to 100
D
0 point 5 x open paren x plus 2 close paren is equal to 24
E
x squared plus 2 x minus 48 is equal to 0

Explanation

The legs are represented by x and x + 2, and the triangle has area 24 and hypotenuse 10. Using the Pythagorean theorem gives x² + (x + 2)² = 100, which is choice C. Using the area formula gives 0.5x(x + 2) = 24, choice E; expanding and rearranging gives x² + 2x − 48 = 0, choice B. These equations give x = 6, so the leg lengths are 6 and 8.

AI-written and checked against the verified answer.

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