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How do you find the x intercept when you have slope and a point?
Wiki User
∙ 14y ago
Obtain the coordinates of the point (a,b)
Utilise the standard equation for a straight line y = mx + c
The slope 'm' is known.
Substituting a, b for x, y then b = ma + c : c = b - ma
The equation now becomes y = mx + (b - ma)
The x intercept occurs when y = 0 : substituting this gives :-
0 = mx + (b - ma) : mx = ma - b : x = (ma - b) ÷ m
EXAMPLE : Slope is 5, Point coordinates are (2,4): x intercept = [(5 x 2) - 4] ÷ 5 = 6 ÷ 5 = 1.2
Wiki User
∙ 14y ago
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How do you find the y intercept when given the slope and x intercept?
Let's use a as the x-intercept and b as the y-intercept and m as the slope.The x-intercept is a point (a,0).y = mx + b is called slope. y-intercept form of a linear equation. Since you need to find b, rearrange the equation to solve for b to get b = y - mx. Now use the point (a,0) n place of x and y to get b = 0 - ma, so b = -ma
What is the slope and y-intercept and x-intercept of y equals -x plus 1?
Slope is -1 y-intercept is 1 x-intercept is 1
What is the slope and y intercept formula?
The slope intercept formula is y=mx + b in which m is the coefficent by x, x is the slope, and b is the y-intercept which is why it is called y-intercpet or slope-intercept. An example: y=3x + 7. Here your slope is three and y-intercept 7.
How do you find the x-intercept in slope form?
It cuts through the x axis and it is an extension of the line cutting through the y axis which is the y intercept
What is y equals x plus 8?
y=x+8 is a linear equation. Y is the Y point on a graph, X is the slope, and 8 is the y intercept
In slope what is the X-intercept?
The x-intercept is the point where the graph touches the x-axis.
Table to Linear Equation?
You get the linear equation from a table by: Seeing the difference between the y coordinates and that should give you slope. Then find the point where x = 0 and at that point the y coordinate associated with the x is the y intercept and at the point where y = 0 the x coordinate associated is the x intercept. apply the y intercept and slope to the equation y = mx + c with m being the slope and c being the y intercept
What is point slope form and slope intercept form?
y=mx+b is slope-intercept form y - y1 = m(x - x1) is point-slope form Used in algebra based math. On a graph; m is the slope b is the y-intercept x and y represent points
How do you find the y intercept in slope intercept form if the slope is 2 and the equation y equals 2x plus b help me please?
y = 2x + b to find y-intercept, you should know one point. you put the point into x and y. and you can find y-intercept. if you are still confused, i want you to follow the related link that explains the concept of slope intercept form very clearly.
How do you find the slope intercept of a vertical line?
A vertical line on a graph has infinite slope and no y-intercept. Its equation is [ x = a number ]. The number is the line's x-intercept.
How would you find the equation of a line if you were given the slope and the y-intercept?
y = {slope}x + {y intercept}
What is a line in slope-intercept form?
A line in slope-intercept form is: y = mx + b m is the slope of the line, and b is the y-intercept. To find the slope, find any two coordinates, and divide the difference in y-values by the difference in x-values; to find the y-intercept, find the value of y where x = 0.
How do you find the equation of a line that has a x intercept of 5 and a slope of 4?
I assume you mean the slope-intercept formula, y=mx+b First, put it in point-slope form. that is y-0=4(x-5) the 4 is the slope, and the 0 and five are from the x-intercept y-0=4(x-5) simplifies to y=4x-20, which is the equation you wanted
How do you find the y intercept when given the slope and x intercept?
Let's use a as the x-intercept and b as the y-intercept and m as the slope.The x-intercept is a point (a,0).y = mx + b is called slope. y-intercept form of a linear equation. Since you need to find b, rearrange the equation to solve for b to get b = y - mx. Now use the point (a,0) n place of x and y to get b = 0 - ma, so b = -ma
How do I find the y-intercept if the line passes through negative 2 and 3?
You can't. There are an infinite number of lines that pass through the point (-2, 3).They all have different y-intercepts and different slopes.In order to narrow it down to a single line, you have to give more information.One more point would do it.=======================================================Here's the minimum information needed to define a unique line:-- you name 2 points; I find slope, intercept, and all other points.-- you name one point and one intercept ... 'x' or 'y'; I find slope and all other points.-- you name x-intercept and y-intercept; I find slope and all other points.-- you name one point and the slope; I find intercept and all other points.-- you name one intercept and the slope; I find all other points.
What is the difference between the slope and the y-intercept?
The slope is the value of m in which you "rise and run" point units The Y-intercept is the value in which X is zero
Find the x in slope-intercept form?
The x is the variable of the slope. The formula for the slope-intercept form is y=mx+b. M would be the slope....ex: 3/4x....the b is the y-intercept...ex:4
