Math help needed asap.
@jim_thompson5910
what's your question?
I have a few here is one Write an equation for each translation of y=|x|. 5.5 units right y = | x | – 5.5 y = | x – 5.5 | y = | x + 5.5 | y = | x | + 5.5
we're going 5.5 units to the right, so we simply replace 'x' with 'x-5.5' to get this `y = | x – 5.5 |`
Thanks. can you help me with others?
sure
A line passes through (2, –1) and (8, 4).Write an equation for the line in point-slope form. Rewrite the equation in standard form using integers. y – 2 = 5/6(x + 1); –5x + 6y = 17 y – 1 = 5/6(x – 2); –5x + 6y = 16 y + 1 = 5/6(x + 2); –5x + 6y = –16 y + 1 = 5/6(x – 2); –5x + 6y = –16
Write an equation for each translation of y=|x|. 7 units right y = | x + 7 | y = | x | – 7 y = | x – 7 | y = | x | + 7
same idea, but instead of 5.5 you use 7 this time
C?
yeah
Can you help me with the other question?
what is it
A line passes through (2, –1) and (8, 4).Write an equation for the line in point-slope form. Rewrite the equation in standard form using integers. y – 2 = 5/6(x + 1); –5x + 6y = 17 y – 1 = 5/6(x – 2); –5x + 6y = 16 y + 1 = 5/6(x + 2); –5x + 6y = –16 y + 1 = 5/6(x – 2); –5x + 6y = –16 6
what's the slope?
Slope-intercept form: An equation of the form y = mx + b, where m is the slope and b is the y-intercept.
what is the slope of the line through (2, –1) and (8, 4) use the slope formula to figure this out
4/3?
no
did you use \[\Large m = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}\]
I think I did it backwards.
-1 - 4 /2 - 8
-5/6
-1 minus 4 = -5 2 minus 8 = -6 -5 over -6 = 5/6
how do i write it out?
the slope?
yes
by using the formula I posted
|dw:1446090183763:dw|
Join our real-time social learning platform and learn together with your friends!