taylorlundquist
taylorlundquist taylorlundquist
  • 11-05-2017
  • Mathematics
contestada

Find an equation of a line through (2, 1) and perpendicular to −2x + 4y = 8
a. y = −2x − 3
b. y = −2x + 3
c. y = −2x + 5
d. y = −2x − 1

Respuesta :

ghanami
ghanami ghanami
  • 14-05-2017

Hello:
the equation is : y = ax+b
the slope is a : a×(1/2) = -1......( perpendicular to a line with a slope of   1/2)            because :    -2x+4y =8...y=(1/2)x+2    )     


a = -2       y=(-2x+b
the line that passes through (2,1) :1 = -2(2)+b
b =5
 the equation is :  y  = -2x+5

Answer Link

Otras preguntas

seven tenths is_________pieces of the whole
The organ system that forms a communication and coordination network throughout all parts of an animal’s body is known as the (A) digestive system. (B) respirat
What is 5 3/4 times 2/6? I am doing math homework and need help
How do u find the reciprocal of 5/11?
F(x) = 4x^2 - 3x + 2kx + 1 What's the value of k for which the function has two zeros?? Can someone show me step by step?
WHAT ARE PLANKTONS HABITAT
A triangle, ΔABC, is reflected across the x-axis to have the image ΔA'B'C' in the standard (x,y) coordinate plane; thus, A reflects to A'. The coordinates of p
What is 5/9 equivalent to
Give the domain of  f(x) = 9^(x-4) +7a.) x > 0b.) x < 7c.) x > 4d.) All Real Numbers
(has,have) any of the missing packages been located?