Question

SOMEONE HELP ME PLS
MEDAL AND FAN

Find the coordinates of the midpoint of if J (-9, 5) and K(21, -7).
Find the slope of a line that has an x-intercept of -2 and a y-intercept of 6.
Find the value of x so that the line passing through (x, 10) and (-4, 8) has a slope of 2/3

Answer 1

HI!!

Answer 2

hi

Answer 3

this is three different questions right?

Answer 4

yes

Answer 5

Find the coordinates of the midpoint of if J (-9, 5) and K(21, -7).
take the average in each coordinate, i.e
\[\left(\frac{21-9}{2},\frac{5-7}{2}\right)\]

Answer 6

alright

Answer 7

compute and get \((6,-1)\)

Answer 8

okay

Answer 9

Find the slope of a line that has an x-intercept of -2 and a y-intercept of 6.
the two points are \((-2,0)\) and \((0,6)\)

Answer 10

slope is
\[m=\frac{6-0}{0-(-2)}=\frac{6}{2}\]

Answer 11

better known as 3

Answer 12

Find the value of x so that the line passing through (x, 10) and (-4, 8) has a slope of 2/3
put
\[\frac{10-8}{x+4}=\frac{2}{3}\] and solve for \(x\)

Answer 13

you get \[\frac{2}{x+4}=\frac{2}{3}\]so
\[x+4=3\] solve that one

Answer 14

alright

Answer 15

x = -1?

Answer 16

yes

Answer 17

okay

Answer 18

i have to 2 more

Answer 19

ohh goodie!

Answer 20

Write the equation of a line in slope intercept form that is parallel to the line y= 1/3x+5 and passes through (-9, 5).

Answer 21

on line class?

Answer 22

yes

Answer 23

ick

Answer 24

parallel line also has slope \(\frac{1}{3}\)

Answer 25

Write the equation of a line in slope-intercept form from the graph below.

Answer 26

wait we are not done with the first one yet!!

Answer 27

Write the equation of a line in slope intercept form that is parallel to the line y= 1/3x+5 and passes through (-9, 5).
slope is \(\frac{1}{3}\) point is \((-9,5)\) equation is
\[y-5=\frac{1}{3}(x+9)\] you can multiply out and then solve for \(y\)

Answer 28

for the picture you need the slope and the y intercept
do you see the y intercept?

Answer 29

2?

Answer 30

yes

Answer 31

how about the slope? do you see that?

Answer 32

3/1 ?

Answer 33

on no

Answer 34

one step to the right, four steps up
slope is \(\frac{4}{1}=4\)

Answer 35

so equation is
\[y=4x+2\]

Answer 36

oh ok