Graph: y = 4 To find three ordered-pair solutions of this equation to plot, we will select three values for x and use 4 for y each time. The given equation requires that y = 4. We can write the equation in general form as 0x + y = 4. Since the coefficient of x is 0, the numbers chosen for x have no effect on y. The value of y is always 4. For example, if X = 2, we have Ox + y = 4 This is the given equation, y = 4, written in standard (general) form. 0(2) + y = Substitute 2 for x. y = Simplify the left side. One solution is (2, 4). To find two more solutions, we choose x = 0 and x = -3. For any x-value, the y-value is always 4, so we enter (0, 4) and (-3, 4) in the table. If we plot the ordered pairs and draw a straight line through the points, the result is a horizontal line. The y-intercept is (0, 4) and there is no x-intercept. y y = 4 y (х, у) (-3, 4) (0, 4) (2, 4) (2, O) 4 y = 4 4 (0, (-3, O) -3 4 -3 -2 2 Choose any number for Each value of y must be 4. х. -2 Graph: y = -5
Graph: y = 4 To find three ordered-pair solutions of this equation to plot, we will select three values for x and use 4 for y each time. The given equation requires that y = 4. We can write the equation in general form as 0x + y = 4. Since the coefficient of x is 0, the numbers chosen for x have no effect on y. The value of y is always 4. For example, if X = 2, we have Ox + y = 4 This is the given equation, y = 4, written in standard (general) form. 0(2) + y = Substitute 2 for x. y = Simplify the left side. One solution is (2, 4). To find two more solutions, we choose x = 0 and x = -3. For any x-value, the y-value is always 4, so we enter (0, 4) and (-3, 4) in the table. If we plot the ordered pairs and draw a straight line through the points, the result is a horizontal line. The y-intercept is (0, 4) and there is no x-intercept. y y = 4 y (х, у) (-3, 4) (0, 4) (2, 4) (2, O) 4 y = 4 4 (0, (-3, O) -3 4 -3 -2 2 Choose any number for Each value of y must be 4. х. -2 Graph: y = -5
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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