Question

What is the value of the function y = 4x – 19 when x = −2.3?
y =

Complete the equation of the linear function.
y = x +
http://static.k12.com/calms_media/media/1524000_1524500/1524413/1/38d64a3a5b9d4814d25e26f39182ce4ea489736f/MS_IMC-140901-106146.jpg

Complete the equation for the linear function whose graph contains the points
(9, 7) and (4, –8).
y − = (x − 9)

Complete the equation for the linear function whose graph contains the point (7, 8) and has a slope of −1.2.
y = x +

Answer 1

will fan and medal btw

Answer 2

For the first one, you first multiply 4 x -2.3.

Answer 3

-9.2

Answer 4

Yes, and subtract that by 19.

Answer 5

-28.2 ?

Answer 6

@iGreen can you help?

Answer 7

Yes, so -28.2 is your answer for the first one.

Answer 8

So for the second one, we are supposed to put in the slope and y-intercept?

Answer 9

yes @AnswerMyQuestions

Answer 10

Well, you find the slope with rise over run.

Answer 11

Well, the y-intercept is where the line touches the y-axis, so what is the y-intercept?

Answer 12

4?

Answer 13

Yes!

Answer 14

To find the slope, we'll start at the point (-2,-2). Do you see that?

Answer 15

yes

Answer 16

So how much do you go up and to the right to get to the next point?

Answer 17

2 up and right 1

Answer 18

No, not 2 up.

Answer 19

oh 3? @AnswerMyQuestions

Answer 20

Yes, so what is your slope?

Answer 21

\[\frac{ 3 }{ 1 } = 3\]

Answer 22

Yes! Great! So what is our equation now?

Answer 23

y=3x + 4

Answer 24

Great. So I don't really know the answers to the last 2, but you can ask them seperately on another post.

Answer 25

ok thanks for the help though @AnswerMyQuestions

Answer 26

Well, I actually can find the answer for the last one, but I don't know how to explain it to you. :P