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Slopes and Intercepts
Slope Formula
Review I
Finding Slope
Review II
100
What is the y-intercept of this graph?



1
100
What is the equation of a line
y=mx + b
100

Is this an arithmetic sequence?  If so, what is the common difference?

-4, -8, -12, -16, ...

yes; d = -4

100
Find the slope when given (3,1) (4,2)
1
100
The y-intercept represents where a graphed line crosses the _____
y-axis
200
y = 10x - 13 What is the y-intercept for this function equation?
-13
200
What does b represent in the equation of a line, y=mx + b
y-intercept
200

The explicit formula for an arithmetic sequence is similar to which of the following: 

1- Point-Slope Form

2- Standard Form

3- Slope-Intercept Form

3- Slope Intercept Form

200
Find the slope when given (7,3) (8, 10)
7
200
Use the distributive property to simplify the expression 1/3(6x - 9) =
2x - 3
300
What is the slope of this line?

y = -x - 3


slope = -1
300
In the equation of a line, y=mx + b, what is the formula for finding m
y2 - y1 Rise _______ x2 - x1 Run
300

In the arithmetic sequence formula, an = a1 + d(n-1), what does the variable, n, represent?

The term number or position in the sequence.

300
Find the slope when given (3,1) (1,7)
-3
300
(2x - 1)(3x + 2)
6x squared + x - 2 or 6x squared + 1x - 2
400
What is the slope of this line?

slope = 2
400
In the equation of a line, y=mx + b, what does m represent?
slope
400

The first term of an arithmetic sequence is 5 with a common difference of -2.  Give the explicit formula that represents this sequence.

an = - 2n + 7


400
Find the slope when given (2,5) (3,2)
-3
400
A right triangle has an area of 50 square inches. The base is 10 inches. What is the height?
10 inches
500
Two points are plotted at (5,1) and (6,6). What is the slope?
5
500
Look at this table:

x_|_y
0 | 8
1 | 6
2 | 4

Is the slope negative, positive, zero, or undefined? How do you know?


Negative. m = -2
500
Find the volume of a cube that is 5 inches on each side
125 cubic inches
500
Find the slope when given (2,5) (1,2)
3
500
The volume of a cube is 27 cubic feet. What is the height of the cube?
3 feet