21
QuizMultiple Choice

Quadratic Functions and Complex Numbers — Test

Question 21 • Mathematics II

Which represents the solution(s) of the graphed system of equations, y is equal to negative x squared plus x plus 2 and y is equal to negative x plus 3 ? Expand Image

Answer
A
1 comma 2
B
1 comma 2 and 0 comma 3
C
2 comma 1
D
negative 1 comma 0 and 2 comma 0

Explanation

Set the equations equal to find where their graphs intersect: −x² + x + 2 = −x + 3. Rearranging gives −(x − 1)² = 0, so x = 1; substituting into either equation gives y = 2. The solution is (1, 2), which is choice A.

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