Mathematics
8 Online
OpenStudy (anonymous):
Write an equation of a line whose graph is parallel to the graph of y = 3x – 10.
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
x=3
y= 5
jimthompson5910 (jim_thompson5910):
why did you write x = 3 and y = 5 ?
OpenStudy (anonymous):
y = 3x + b
OpenStudy (anonymous):
what i conclude is that the equation is parallel to 3
OpenStudy (anonymous):
and we let b the value of y-intercept
Join the QuestionCove community and study together with friends!
Sign Up
jimthompson5910 (jim_thompson5910):
are you supposed to find the equation of the line parallel to y = 3x - 10
and this parallel line goes through (3,5)
OpenStudy (anonymous):
yea
OpenStudy (anonymous):
is it the correct one
jimthompson5910 (jim_thompson5910):
y = mx + b
y = 3x + b
5 = 3*3 + b
5 = 9 + b
solve for b
OpenStudy (anonymous):
-4
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
b = -4
jimthompson5910 (jim_thompson5910):
good
jimthompson5910 (jim_thompson5910):
so the equation of the parallel line is y = 3x - 4
OpenStudy (anonymous):
thanks
jimthompson5910 (jim_thompson5910):
np
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
dont go i have a dilation multiple choices
jimthompson5910 (jim_thompson5910):
ok I'll help with 2 more
OpenStudy (anonymous):
are you going
jimthompson5910 (jim_thompson5910):
soon, but I can do 2 more
OpenStudy (anonymous):
mine are multiple choice can hou point the answe with the minimum explanation
Join the QuestionCove community and study together with friends!
Sign Up
jimthompson5910 (jim_thompson5910):
sure I'll see what I can do
OpenStudy (anonymous):
sorry A
jimthompson5910 (jim_thompson5910):
does it say if it's clockwise or counterclockwise?
OpenStudy (anonymous):
there is nothing written linke this
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
but i suppose its counter clockwise
jimthompson5910 (jim_thompson5910):
if it's counter clockwise, then you add 240 degrees to 60 degrees to get 300 degrees
jimthompson5910 (jim_thompson5910):
which is where point K is at
OpenStudy (anonymous):
A is the correct option i think
Join the QuestionCove community and study together with friends!
Sign Up
jimthompson5910 (jim_thompson5910):
yes it's A
OpenStudy (anonymous):
i think this one is D
jimthompson5910 (jim_thompson5910):
no your first answer of C is correct
OpenStudy (anonymous):
but i got 0 in it
Join the QuestionCove community and study together with friends!
Sign Up
jimthompson5910 (jim_thompson5910):
oh, hmm ok let me recheck
jimthompson5910 (jim_thompson5910):
oh my bad, I'm thinking I and III
jimthompson5910 (jim_thompson5910):
so it would be B
OpenStudy (anonymous):
D
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
sory B
jimthompson5910 (jim_thompson5910):
C actually, it will help to plot the xy axis and the points of each step
OpenStudy (anonymous):
why not B
jimthompson5910 (jim_thompson5910):
if you draw an xy axis, plot the point (-2, -1)
then reflect it over y = -5
you'll get (-2,-9)
jimthompson5910 (jim_thompson5910):
then reflect (-2, -9) over x = 1 to get (4, -9)
Join the QuestionCove community and study together with friends!
Sign Up
jimthompson5910 (jim_thompson5910):
for each point P, Q, and R, you swap x and y
OpenStudy (anonymous):
so B
jimthompson5910 (jim_thompson5910):
yes
OpenStudy (anonymous):
thanks a lot
Join the QuestionCove community and study together with friends!
Sign Up
jimthompson5910 (jim_thompson5910):
yw