-- Take the equation. -- Say to yourself, "At the x-intercept, y=0". Set 'y' equal to zero, solve the equation for 'x', and you have the x-intercept. -- Take the original equation again. -- Say to yourself, "At the y-intercept, x=0". Set 'x' equal to zero, solve the equation for 'y', and you have the y-intercept.
The y-intercept, together with the slope of the line, can also be used in graphing linear equations. The slope and y-intercept of a line can be obtained easily by inspection if the equeation of the line is of the form y=mx+b where m is the slope and b is the y-intercept.
4
You cannot solve one linear equation in two variables. You need two equations that are independent.
Every straight line can be represented by an equation: y = mx + b. The coordinates of every point on the line will solve the equation if you substitute them in the equation for x and y.The slope m of this line - its steepness, or slant - can be calculated like this:m = change in y-valuechange in x-valueThe equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept.The y-intercept of this line is the value of y at the point where the line crosses the y axis.
you cant
-- Take the equation. -- Say to yourself, "At the x-intercept, y=0". Set 'y' equal to zero, solve the equation for 'x', and you have the x-intercept. -- Take the original equation again. -- Say to yourself, "At the y-intercept, x=0". Set 'x' equal to zero, solve the equation for 'y', and you have the y-intercept.
If it is a linear function, it is quite easy to solve the equation explicitly, using standard methods of equation-solving. For example, if you have "y" as a function of "x", you would have to solve the variable for "x".
The y-intercept, together with the slope of the line, can also be used in graphing linear equations. The slope and y-intercept of a line can be obtained easily by inspection if the equeation of the line is of the form y=mx+b where m is the slope and b is the y-intercept.
4
You cannot solve one linear equation in two variables. You need two equations that are independent.
Every straight line can be represented by an equation: y = mx + b. The coordinates of every point on the line will solve the equation if you substitute them in the equation for x and y.The slope m of this line - its steepness, or slant - can be calculated like this:m = change in y-valuechange in x-valueThe equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept.The y-intercept of this line is the value of y at the point where the line crosses the y axis.
you create ordered pairs or a serious of (x,y) points on the graph which you can plot and connect with a straight line
If you mean points of (3, 4) and (5, 8) then the slope is 2 and the equation is y=2x-2
You will need to find the slope and the y-intercept. For example: find the equation of the line containing points (0,5) and (2,10) and write it in slope-intercept form. The slope (m) here is found using the formula (y2-y1)/(x2-x1) So... (10-5)/(2-0) = 5/2 The y-intercept (b) is the value of y at the point where x=0 So... it is 5 The slope-intercept formula is y=mx+b So... that gives us y=(5/2)x+5
Definition of slope intercept form:The slope-intercept form is one way to write a linear equation (the equation of a line). The slope-intercept form is written as y = mx+b, where m is the slope and b is the y-intercept (the point where the line crosses the y-axis). It's usually easy to graph a line using y=mx+b. Other forms of linear equations are the standard form and the point-slope form.For example, if you have slope of 2 and points (4, 5) your equation will look like this:5=2x+bif x=4, you get 5=2(4)+bsolve for b: -3y=2x-3
There are no disadvantages. There are three main ways to solve linear equations which are: substitution, graphing, and elimination. The method that is most appropriate can be found by looking at the equation.