dburgess27103
dburgess27103 dburgess27103
  • 02-04-2020
  • Mathematics
contestada

An equation of a line through (-1,4) which is perpendicular to the line y=4x + 1 has slope - 1/4 and y-intercept

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andreamoss andreamoss
  • 02-04-2020

Answer:

y intercept is 3.5 or 3 1/2

Step-by-step explanation:

y=mx+b

substitute the ordered pair (-1,4) in place for y and x in the equation; substitute the slope of -1/4 in place of m to solve for "b"

4= -1/4(-1) +b

4= 2/4+b

subtract 2/4 from both sides

b= 3 2/4 which reduces to 3 1/2 or in decimal form 3.5

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