5. using a coordinate plane:
a. graph the lines y = 2x + 5, y = 2x - 3 and x = 0 in the same coordinate plane.
b. consider the equation y = mx + 1. for what values of m will those triangles be
congruent right triangles? explain.

Students are given 3 minutes for each multiple-choice question and 5 minutes for each free-response question on a test. there are 15 questions on the test, and students are given 51 minutes to take it.how many multiple-choice questions are on the test?

Match the equivalent expressions. x - 3y + 12 12 - 3y - 2x + x + 2x 3x + 2y - 2x + y + 12 3y + 12 3x + y - 12 4y + 3y + 3x - 6y - 10 - 2 x + 3y + 2x - 3x + 7 + 5 x + 3y + 12 5 + 2y + 7x - 4x + 3y - 17

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?