2. two linear functions in a coordinate plane have no points
of intersection. which pair of functions does not intersect?

a: 6x + 2y = 12 and 20x + 10y = 14. b: 4x + 2y = 12 and 20x + 10y = 30
c: 6x +2y = 12 and y = 0.5x -0.6
d: 10x + 10y = 6 and y = 0.5x - 0.6

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.

Find the value of x in each case. give reasons to justify your solutions! d q ∈ pr

Solve 2 - 3 cos x = 5 + 3 cos x for 0° ≤ x ≤ 180° a. 150° b. 30° c. 60° d. 120°