Unit 1/2
Solve the following equation:
69 = -7 - 4x
x = -19
Angle 6 and Angle 8 have what relationship?
Vertical
Write the equation a line whose slope is 5/2 and y-intercept is (0,-1).
y = 5/2x - 1
Where would you see the solution for a system of equations on a graph?
*Hint: if given two equations, where are they equal on a graph*
Where they cross
What is the formula for the area of a circle?
A = pi * r2
-7(4 + 3a) = 140
a = -8
Angle 1 and Angle 7 are what relationship?
Alternate Exterior Angles
Write the following equation in slope-intercept form:
4x + 2y = 10
*Hint: y = mx + b*
y = -2x + 5
Graph the line on number 39.
*SEE GRAPH*
What is the formula for the volume of a cone?
V = (pi * r2h) / 3
2/6 = 8/x
x = 24
If Angle 7 is 95 degrees, what is Angle 2?
85 degrees
Write the slope-intercept form equation of the line that goes through the point (-3,1) and has a slope of -1.
*REMEMBER Y=MX+B
y = -x - 2
RANDOM RAD!
What is the definition of slope?
Change in y / Change in x
Rate of change of a line
The gradient of a line
What is the EXACT volume of the cylinder on number 44?
PI SHOULD BE IN YOUR ANSWER!
1600 pi miles3
-7 < 5 - 7x + 2
x < 2
If Angle 5 is 105 degrees, what is Angle 3?
105 degrees
Use the table on number 33 to answer this question.
Write the slope-intercept form equation of the line that has the points in the table.
y = -2x - 4
Solve the following system by graphing
y = x - 3
y = 5x + 1
*See Graph*
What is the EXACT volume of the cone on number 47?
PI SHOULD BE IN YOUR ANSWER!
144 pi yards3
|10b + 2| - 6 = 2
x = -1 or 3/5
From the triangle on number 26, use the exterior angle theorem and find Angle G.
Angle G = 50 degrees
Write the slope-intercept form of the graph on number 34.
y = x + 1
What is the equations of the lines for number 43?
y = -1/2x + 2
y = -2x - 4
What is the EXACT volume of the sphere on number 48?
PI SHOULD BE IN YOUR ANSWER!
2304 pi miles3