Suppose cos(a)=4/5 use the trig identity sin2 (a) + cos2(a)=1 to find sin(a) in quadrant Iv round to ten thousand

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Step-by-step explanation:

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A linear equation is an equation with two variables whose graph is a line. The graph of the linear equation is a set of points in the coordinate plane that all are solutions to the equation. If all variables represent real numbers one can graph the equation by plotting enough points to recognize a pattern and then connect the points to include all points.

If you want to graph a linear equation you have to have at least two points, but it's usually a good idea to use more than two points. When choosing your points try to include both positive and negative values as well as zero.

Step-by-step explanation:

Graft the function y = x + 2

Begin by choosing a couple of values for x e.g. -2, -1, 0, 1 and 2 and calculate the corresponding y values.

XY = x + 2Ordered pair

-2-2 + 2 = 0(-2, 0)

-1-1 + 2 = 1(-1, 1)

00 + 2 = 2(0, 2)

11 + 2 = 3(1, 3)

22 + 2 = 4(2, 4)