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Example Questions
Example Question #2 : How To Find The Slope Of A Line
What is the slope of a line passing through the point
, if it is defined by:
?
Since the equation is defined as it is, you know the y-intercept is . This is the point
. To find the slope of the line, you merely need to use the two points that you have and find the equation:
Example Question #31 : Coordinate Geometry
Which of the following could be an equation for the red line pictured above?
There are two key facts to register about this drawing. First, the line clearly has a negative slope, given that it runs "downhill" when you look at it from left to right. Secondly, it has a positive y-intercept. Therefore, you know that the coefficient for the term must be negative, and the numerical coefficient for the y-intercept must be positive. This only occurs in the equation
. Therefore, this is the only viable option.
Example Question #5 : Other Lines
What is the slope of a line defined by the equation:
A question like this is actually rather easy. All you need to do is rewrite the equation in slope intercept form, that is:
Therefore, begin to simplify:
Becomes...
Then...
Finally, divide both sides by :
The coefficient for the term is your slope:
Example Question #7 : How To Find The Slope Of A Line
What is the slope of line 3 = 8y - 4x?
2
0.5
-2
-0.5
0.5
Solve equation for y. y=mx+b, where m is the slope
Example Question #2 : How To Find Slope Of A Line
Find the slope of the line 6X – 2Y = 14
-3
12
3
-6
3
Put the equation in slope-intercept form:
y = mx + b
-2y = -6x +14
y = 3x – 7
The slope of the line is represented by M; therefore the slope of the line is 3.
Example Question #1 : How To Find The Slope Of A Line
If 2x – 4y = 10, what is the slope of the line?
–2
0.5
–5/2
–0.5
2
0.5
First put the equation into slope-intercept form, solving for y: 2x – 4y = 10 → –4y = –2x + 10 → y = 1/2*x – 5/2. So the slope is 1/2.
Example Question #1 : How To Find The Slope Of A Line
What is the slope of the line with equation 4x – 16y = 24?
1/4
1/2
–1/8
1/8
–1/4
1/4
The equation of a line is:
y = mx + b, where m is the slope
4x – 16y = 24
–16y = –4x + 24
y = (–4x)/(–16) + 24/(–16)
y = (1/4)x – 1.5
Slope = 1/4
Example Question #111 : Lines
What is the slope of a line which passes through coordinates and
?
Slope is found by dividing the difference in the -coordinates by the difference in the
-coordinates.
Example Question #41 : Coordinate Geometry
What is the slope of the line represented by the equation ?
To rearrange the equation into a format, you want to isolate the
so that it is the sole variable, without a coefficient, on one side of the equation.
First, add to both sides to get
.
Then, divide both sides by 6 to get .
If you divide each part of the numerator by 6, you get . This is in a
form, and the
is equal to
, which is reduced down to
for the correct answer.
Example Question #4 : How To Find The Slope Of A Line
What is the slope of the given linear equation?
2x + 4y = -7
-2
1/2
-1/2
-7/2
-1/2
We can convert the given equation into slope-intercept form, y=mx+b, where m is the slope. We get y = (-1/2)x + (-7/2)
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