What statistical test was used in "Using Teacher-Written Praise Notes to Promote a Positive Environment in a Middle School?" Did the authors use the correct statistical test? In other words, what was their rationale for using this test (i. e., were the variables discrete or continuous and was the test appropriate for this type of data?)
What was the research question? How did the statistical test address and answer the research question?
How did the authors interpret the results of this study?

squares, rhombus, rectangles

answer:

given the linear inequality :

add 2y to both sides we get;

simplify:

add 12 to both sides of an equation;

simplify:

divide both sides by 2 we get;

or

the related equation for the inequality equation [1] is;

y-intercepts defined as the graph crosses the y-axis.

substitute x =0 in [2] to solve for y;

y = 6

x-intercepts defined as the graph crosses the x-axis.

substitute value y = 0 to solve for x;

subtract 6 from both sides we get

multiply both sides by 2 we get;

or

x = -12

now, plot these point (0, 6) and (-12, 0) on graph as shown below and shade the graph below the solid line.

beth buys 10 x shirts and still has more than 100 in her account