Solve the system of equations and choose the correct answer from the list of options.

d + e = 1
−d + e = −5
label the ordered pair as (d, e).

(0, 0) (3, −2) (−2, 3) (−3, 0)

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

Which of the following is the result of expanding the series

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?