The value of b is the y-intercept, which is the point where the graph crosses the y-axis. The number m is the slope of the line, where slope m = rise over run. It gives the steepness of the line. And of course, x and y are variables which change within the graph from one point to another.

the standard form of y = mx + b becomes y = 2x + b now you take the point (x,y) = (3,5) that is on the line (has to be on the line) and replace x and y in the equation with it. the equation becomes 5 = 2*3 + b then you solve for b. in this case b = 5-1 = -1 your equation becomes y = 2x - 1 graph of that equation looks like:

Question 206373: what do the variables in the equation y=mx+b mean? Answer by ... b=y int y=variable on ...

The x and y are coordinates of a point on a rectangular coordinate system. So let's say m=2 and b=1 Then at x=1 y=mx+b=2*1+b=3 Then at x=0 y=2*0+1=1. Using these two points you can plot a line as shown below and note the slope of 2 (one unit to the right means two units up) and y-intercept=b=1 at x=0 or at point (0,1):

Question 1205693: If a line has an x-intercept at x=-3 and a y-intercept at y=2 find its equation in the form y=mx+b Answer by MathLover1(20819) ( Show Source ): You can put this solution on YOUR website!

Y=mx+b, where m and b are real numbers and are not equal to zero. D: R: Answer by solver91311(24713 ...

Suppose that the line with equation y=mx+b passes through the points (4,5) and (3,-1) Then m+b=?. m is just the slope between the two points: m = (y2-y1)/(x2-x1) m = (-1-5)/(3-4) m = -6/-1 m = 6. to find b, plug one point (4,5) and the slope into equation: y=mx+b 5=6(4)+b 5=24+b-19 = b. So, m+b = 6-19 = -13

Write an equation of the line containing the given point and perpendicular to the given line. Express your answer in the form y = mx + b (4,5); 3x + y = 4 The equation of the line is y = What? 2. Write an equation of the line containing the given point and perpendicular to the given line. (3, - 3); 8x +7y = The equation of the line is y = What?

The slope-intercept form is: y = mx + b. m = slope m = rise over the run m = change in y / change in x m = 0 if the line is horizontal m = undefined if the line is vertical b = y-intercept y-intercept is the point (0, b). In your given equation: y = 4 y = (3/5)*x + b so 4 = (3/5)*x + b m = 3/5 This means that y changes 3 units when x changes 5 ...

-4y/(-4) = (8 - 2x)/(-4) (LHS becomes 'one' times y, which is written simply as 'y') y = -2x/(-4) + 8/(-4) This is in the form y = mx + b m is the slope (rise / run) and here it is 1/2 b is the y-intercept, it is where the line meets the y-axis and is-2 in this case. Note that the y-axis is where x=0, so if you set x=0 in y=mx+b you get y=b.