Sammirosesharp Sammirosesharp
  • 29-12-2017
  • Mathematics
contestada

need urgent help!?
The graphs of the equations 2x + 2y = 4 and y = -x + 5 are _____ lines.
parallel
perpendicular
intersecting
skew

Respuesta :

tynollette tynollette
  • 29-12-2017
look at the slope:
2x+2y=4  =>2y=-2x+4  =>y=-x+2 the slope is -1, the same as the line y=-x+5, so the two lines are parallel.
Answer Link
pmayl
pmayl pmayl
  • 29-12-2017
Writing both in slope intercept form:
Line 1:
2x + 2y = 4       Subtract 2x
2y = -2x + 4      Divide both sides by 2
y = -x + 2

Line 2:
y = -x + 5

The lines have the same slope, -1, and different y-intercepts.

They are parallel lines
Answer Link

Otras preguntas

3. Factor out the GCF -3x'y' + 15x'y' - 6xy
The formula t=h√4 represents the time t in seconds that it takes an object to fall from a height of h feet. If an egg falls from a height of 330 feet, estimate
How many different types of substrates can enzymes react with?
create dialogs or expression showing informal or formal language registers in creating and posting your feelings in FB status​
Which is the reciprocal of 1 6/7 pls asap
A rectangle is twice as long as it is wide. If it has an area of 84.5 square inches, what are its dimensions? Enter them below, separated by a comma.
write the method of using comment line in html code.Pls help in and doors are open for Japanese friend ​
How are the lower and upper limits of your target heart rate defined?
How do I find the missing side using the Pythagorean theorem?
2. The process by which heat is transmitted in liquid and gases by the actualof molecules is called 'convectiion'. TRUE OR FALSE​