All Algebra 1 Resources
Example Question #1 : How To Find Slope Of A Line
What is the slope of the equation 4x + 3y = 7?
We should put this equation in the form of y = mx + b, where m is the slope.
We start with 4x + 3y = 7.
Isolate the y term: 3y = 7 – 4x
Divide by 3: y = 7/3 – 4/3 * x
Rearrange terms: y = –4/3 * x + 7/3, so the slope is –4/3.
Example Question #71 : Slope And Line Equations
Find the slope of the line through the points (6,2) and (3,4).
The equation for slope is . You plug in the coordinates from the points given you, and get , giving you . Note that it does not matter which point you use as point 1 and point 2, as long as you are consistent.
(6,2) = (x1,y1)
(3,4) = (x2,y2)
Example Question #72 : Slope And Line Equations
Given the line 4y = 2x + 1, what is the slope of this line?
4y = 2x + 1 becomes y = 0.5x + 0.25. We can read the coefficient of x, which is the slope of the line.
4y = 2x + 1
(4y)/4 = (2x)/4 + (1)/4
y = 0.5x + 0.25
y = mx + b, where the slope is equal to m.
The coefficient is 0.5, so the slope is 1/2.
Example Question #73 : Slope And Line Equations
What is the slope of the line containing the points (7,12) and (91,32).
To find the slope of a line you must first assign variables to each point. It does not matter which points get which variables as long as you keep the and and and consistent when you plug them into the equation.
Then we plug in the variables to this equation where represents the slope.
Then we plug in our points for and the example looks like
Then we perform the necessary subtraction and division to find an answer of
Example Question #2 : How To Find Slope Of A Line
Example Question #75 : Slope And Line Equations
Which of the following is an example of an equation written in slope-intercept form?
Slope intercept form is , where is the slope and is the y-intercept.
is the correct answer. The line has a slope of and a y-intercept equal to .
Example Question #3 : How To Find Slope Of A Line
If (1,2) and (4,6) are on the same line, what is the slope of the line?
Example Question #77 : Slope And Line Equations
The equation of a line is:
What is the slope of the line?
Solve the equation for
where is the slope of the line:
Example Question #78 : Slope And Line Equations
A line passes through the points and . What is its slope?
The slope is the rise over the run. The line drops in -coordinates by 13 while gaining 5 in the -coordinates.
Example Question #79 : Slope And Line Equations
What is the slope of the line ?
You can rearrange to get an equation resembling the formula by isolating the . This gives you the equation . The slope of the equation is 2 (the within the equation).