Use substitution to solve the system of equations. y = 4x 2x − y = −8 a. (4, 1) b. (4, 16) c. (2, −8) d. (−8, −2)

which expression represents the approximate length of bc?

step-by-step explanation:

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answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

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