Beam
What is the slope of x = 7?
Undefined
What's the y-intercept? Write it as a point.
y = 1/2x - 4
(0, -4)
Find the next three terms.
-21, -18, -15, ...
-12, -9, -6
Solve for y.
2x + y = 7
y = -2x + 7
What's the slope?
3 - 5x = y
m = -5
What's the common difference?
2, -3, -8, -13, ...
d = -5
Which line has a steeper slope?
y = 3/5x OR y = 2/3x
y = 2/3x
What is the slope of y = 7?
Zero
DOUBLE JEOPARDY
What year was Mrs. Shamble born?
1993
Does this line have a positive slope or negative slope?
7x - 8y = 16
Positive
Describe the transformation.
y = (x+3)2
Shifted left 3 units
Find the x-intercept. Write it as a point.
2x - 6y = 18
(9,0)
Describe the transformation.
y = x2 - 3
Shifted down 3 units
Find the y-intercept. Write it as a point.
2x - 6y = 18
(0,-3)
Describe the transformation.
y = -x3
Reflected over the x-axis
Write the fully simplified arithmetic sequence.
3, 5, 7, 9, ...
Start: an = 3 + 2(n-1)
Final: an = 2n + 1
Draw the graph of the absolute value parent function.
V shape
A corn plant is 2 inches tall at 6 weeks old. It is 10 inches tall at 8 weeks. Find the corn plant's rate of change. Include the unit.
2-10/6-8 = -8/-2 = 4
4 inches per week
Write the fully simplified arithmetic sequence.
-0.25, 0.25, 0.75, 1.25, ...
an = -0.25 + 0.5(n-1)
an = 0.5n - 0.75
Identify the slope and y-intercept (as fraction).
0.5x - 1.75y = 8.75
y = 2/7x - 5
slope = 2/7
y-intercept = (0,-5)
Find the x-intercept. Write it as a point.
y = 6/5x - 12
(10,0)
Find the 233rd term of the arithmetic sequence.
-2, -5, -8, -11, ...
an = -2 -3(n-1)
an = -3n + 1
a233 = -3(233)+1
a233 = -698
List every transformation.
y = -2(x-2)2+2
Reflected over x-axis
Vertical stretch by 2
Shifted right 2 units
Shifted up 2 units
Find the 78th term of the arithmetic sequence.
8, 12, 16, 20, ...
an = 8 + 4(n-1)
an = 4n + 4
a8 = 4(78)+4
a8 = 316
Identify the domain of the square root function in interval notation.
[0, infinity)