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To find a line that goes through two given points first find the slope between the points. (y-y)over (x-x) Then use a formula to find the rest.
I use the slope intercept formula and find "b" the y-intercept.
Let's try one.
(2,7) and (3,10)
7-10=-3
2-3=-1
-3/-1=3 the slope
7=3(2)+b
7=6+b
7-6=b
1=b
SO y=3x+1 is the formula for a line going through (2,7) and (3,10)
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How do you find coordinates of a line from an equation without graphing?
By substitution
How can you find the coordinates of two lines mathematically given the equation of both?
Subtract the equation of one line from the equation of the other
What does the equation allows you to find on any point on the line?
The x and y coordinates
How do you find a point lying on the line?
Substitute the coordinates of the point into the equation of the line. If the result is true, then the point is on the line.
What is a quadratic equation when graphed?
The graph (on Cartesian coordinates) of a quadratic equation is a parabola.
How do you find coordinates of a line from an equation without graphing?
By substitution
How can you find the coordinates of two lines mathematically given the equation of both?
Subtract the equation of one line from the equation of the other
How do you find the equation of a line with two coordinates?
Assume the equation is y = kx + c Put in the x and y values of your known coordinates and sove the simultaneous equations.
An equation allows you to find the x- and coordinates of any point on the xy - plane?
Yes if it is a straight line equation
What does the equation allows you to find on any point on the line?
The x and y coordinates
Does an equation allow you to find the x and y coordinates of any point on the xy plane?
Yes if it is a straight line equation
How do you find the coordinates of y-intercept and x-intercept on a graph?
You can either measure or estimate the coordinates visually from the graph, or solve the equation underlying the graph.
An equation allows you to find the x- and y-coordinates of any point on the xy-plane?
True
An equation for a line in the plane allows you to find the x- and y-coordinates of any point on that line?
True.
How do you find a point lying on the line?
Substitute the coordinates of the point into the equation of the line. If the result is true, then the point is on the line.
What is a quadratic equation when graphed?
The graph (on Cartesian coordinates) of a quadratic equation is a parabola.
An equation whose variables are polar coordinates is called a(n) equation?
polar
