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How do you find the y-intercept of a symbolic rule? - Answers

An example of a symbolic rule is y=2x-5. Since this is in the y=mx+b form, the y-intercept (b) is -5. If your rule looks different, e.g. 3x-2y+8=0, then put 0 in for x, and solve for y: 3(0) -2y +8 = 0 <=> -2y +8 = 0 <=> -2y = -8 <=> y = -8/-2 <=> y=-4. 9 out of 10 teachers (I'm with them) would say that the y-intercept is the number -4. The other one would say it is the point (0,-4)



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How do you find the y-intercept of a symbolic rule? - Answers

https://math.answers.com/math-and-arithmetic/How_do_you_find_the_y-intercept_of_a_symbolic_rule

An example of a symbolic rule is y=2x-5. Since this is in the y=mx+b form, the y-intercept (b) is -5. If your rule looks different, e.g. 3x-2y+8=0, then put 0 in for x, and solve for y: 3(0) -2y +8 = 0 <=> -2y +8 = 0 <=> -2y = -8 <=> y = -8/-2 <=> y=-4. 9 out of 10 teachers (I'm with them) would say that the y-intercept is the number -4. The other one would say it is the point (0,-4)



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https://math.answers.com/math-and-arithmetic/How_do_you_find_the_y-intercept_of_a_symbolic_rule

How do you find the y-intercept of a symbolic rule? - Answers

An example of a symbolic rule is y=2x-5. Since this is in the y=mx+b form, the y-intercept (b) is -5. If your rule looks different, e.g. 3x-2y+8=0, then put 0 in for x, and solve for y: 3(0) -2y +8 = 0 <=> -2y +8 = 0 <=> -2y = -8 <=> y = -8/-2 <=> y=-4. 9 out of 10 teachers (I'm with them) would say that the y-intercept is the number -4. The other one would say it is the point (0,-4)

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      An example of a symbolic rule is y=2x-5. Since this is in the y=mx+b form, the y-intercept (b) is -5. If your rule looks different, e.g. 3x-2y+8=0, then put 0 in for x, and solve for y: 3(0) -2y +8 = 0 <=> -2y +8 = 0 <=> -2y = -8 <=> y = -8/-2 <=> y=-4. 9 out of 10 teachers (I'm with them) would say that the y-intercept is the number -4. The other one would say it is the point (0,-4)

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