Question

how can i find "b" in y=mx+b

Answer 1

y-mx=b

Answer 2

how to find it?
y=mx+b <---
^
is right here

Answer 3

ohhh you meant how to solve for "b"

Answer 4

well can you give me your eqaution so I can tell you

Answer 5

because I know how I just need to see your problem its very simple ill show you

Answer 6

Rearrange for B.
Y=mx+b
Y-mx=b
Ex. Find the value of given:
Y=2/3x+b and the point (1,2)
Step 1: Substitute (1,2) into equation.
2=2/3(1)+B
note: (1=x, y=2)
Step 2: Simplify
2=2/3+B
Step 3: Rearrange.
2 multiplied by 3 divided by 2= B
6/2=B
3=B

Answer 7

If you are given a graph, B is represented by the y-intercept which means the point that lies on the y-axis, this point will always have a x-value=0.

Answer 8

@emilylaurenforever : Part of the difficulty we're all having here is that we don't know from you whether you're supposed to solve the given equation y=mx+b algebraically for b, or whether you have an actual linear equation and need to identify the value of b. Please provide this clarifying information.

Answer 9

i know the slope of the line is 4/3 and the first part of my equation is y=4/3x+b i need to find the value of b

Answer 10

Thank you for sharing this. Without it I really had little or no idea of what you were trying to do. You're given two points and are asked to find the equation of the line thru these 2 points in slope-intercept form.

Answer 11

Write y = m x + b.
Choose either of the 2 given points. For example, choose (3,0). Then when x = 3, y = 0.
Substitute these x- and y- values into y=mx+b. Also substitute your value for the slope, m. Finally, solve the resulting equation for b. Mind trying this, and showing all work?

Answer 12

y = m * ( ) + b
0 = (?) * (3 ) + b

You've found the slope, m; substitute its value above. Then solve this equation for b.

Answer 13

?

Answer 14

@mathmale did i do this correctly?