What is the slope of the line that passes through (1,4) and (1,-3)?A. 7B. -7C. undefinedD. 0
2 answers
Question:
what is the slope of the line that passes through (1,4) and (1,-3)?
A. 7
B. -7
C. undefined
D. 0
A. 7
B. -7
C. undefined
D. 0
Answers
Use formula of a slope.M = y2 - y1 / x2 - x1 = -3 - 4 / 1 - 1 = -7 / 0 = undefined.Therefore the answer is C.
The first point is (1,4) which means (x1,y1) = (1,4). So,x1 = 1y1 = 4The second point is (1,-3) meaning that (x2,y2) = (1,-3). So,x2 = 1y2 = -3Now use the slope formula. Plug in those four values mentioned abovem = (y2 - y1)/(x2 - x1)m = (-3 - 4)/(1 - 1)m = -7/0This is where we run into issues. The denominator is 0. We CANNOT divide by zero. So the result is undefined. Your calculator may say "UND" for "Undefined", it might say "NaN" for "Not a Number", or it might produce some other type of error. Answer: Choice C) undefinedNote: if you draw a line through the two given points, the line is completely vertical
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