Question

Help I will medal and fan! I understand how to find the slope in a table. But how do I find the y-intercept? Also, I only slightly understand doing the same for equations written in separate forms. So explanations for that are wanted! Please help! And explain how to find them for an equation written in each form. Oh and how to write an equation from one form to another.

Answer 1

\(\Huge\bf\color{red}{HELP~ME~PLEASE!!!}\)

Answer 2

Lol I know it's a lot for one question but I really need help. So please explain how to do it!

Answer 3

@sleepyjess please help me!!

Answer 4

@iGreen @mathslover @Callisto @Conqueror @AnswerMyQuestions @triciaal @satellite73 @AidenS Please help me!

Answer 5

*the table shows a function*

Answer 6

Ok one thing at a time lol
To find the y intercept I either graph it or just use the slope to find the pint when x = 0

Answer 7

ok

Answer 8

no repeated x

Answer 9

?

Answer 10

But how do I find the y-intercept?
the y intercept is where the function crosses the y-axis at x = 0
so, set x = 0 find the value of y this is the y-intercept also b in the equation y = m x + b

Answer 11

Oh and how to write an equation from one form to another.
point slope form
slope,m = y2 - y1/x2 - x1 for 2 points (x1, y1) and (x2, y2)
the slope is the same for any 2 points on that line
using the point (x, y) and one of the given points example (x1, y1) then
m = y - y1/(x - x1)
multiply each side of the equation by the LCD (x-x1) gives
y - y1= m(x-x1)

to put in slope intercept form expand the parenthesis and let y be the subject
so y = mx -mx1 + y1
-mx1 + y1 = b
y = m x + b

Answer 12

Thanks so much!!!

Answer 13

Any other explanations are welcome just to make sure I fully understand:)

Answer 14

maybe you should get problems to practice with.
math is just working problems. the concepts never change.
same process with different numbers

Answer 15

ok I get it now though thank you!!

Answer 16

you are always welcome.

Answer 17

:D