capelelena55
capelelena55 capelelena55
  • 16-06-2020
  • Mathematics
contestada

Is the line y = 3x – 7 parallel or perpendicular to 3x + 9y = 9? Explain your answer.

Respuesta :

snog
snog snog
  • 16-06-2020

Answer:

perpendicular

Step-by-step explanation:

The slope of y = 3x - 7 is 3.

3x + 9y = 9 → 9y = -3x + 9 → y = -1/3 x + 1 so its slope is -1/3.

This means that they are perpendicular because the product of their slopes is -1.

Answer Link

Otras preguntas

Read each the sentence carefully. If a comma is needed, rewrite (type) the sentence and add the comma in the correct spot. If the sentence is correct, write cor
Which expression is equivalent to the following complex fraction? ​
Find m a 24.7 b 79.2 c 68.3 d 57.4 e 46.5 f 80.1 g 35.6
Why do stars appear so steady when viewed from the surface of moon or by an astronaut in space? Answer properly pls
write the ploynomail expression in the table of 1) 2x+3 2) 3y2-2y+4​
Which of these was not a result of the Red Scare?
The presence of which gas makes the planets Uranus and Neptune appear blue? a. helium b. hydrogen c. methane d. nitrogen
Two harmonic sound waves reach an overseveer simulatenouslt. the obsever hears the sound intensity rise and fall with a time of 0.2 between the maximmu intensit
how do you say “i understood everything you both said”
Change the following into the active voice:​