Solving Equations
combine like terms: 6a - 2 + 4a + 4b + 7
10a + 4b+ 5
If point A (-2, 4) was moved according to the rule: (x, y) --> (x + 3, y - 4), what would A' be?
A': (1, 0)
Write 6.12 times ten to the second power in standard form.
612
Graph: y = 2x + 1
Check whiteboards
Draw a picture of all three types of correlation and label them.
See whiteboards
Solve the equation: 3k + 5 = -1
k = -2
If a triangle had the sides of 6in, 8in and 10in, would it create a right triangle?
Yes
Check whiteboards
What type of correlation would there be between a person's height and a person's math test score?
No correlation
Solve the equation: 4(y + 5) - 3y = 25
y = 5
Point G (3, 5) was reflected over the y axis and then moved down six units. What are the coordinates of G'?
G': (-3, -1)
What is 12,000 + 1.5 x 10^3? Write the answer in scientific notation.
1.35 x 10^4
Would this set of ordered pairs represent a function?
{(-3, 2), (-1, 5), (4, 5), (6, 10)}
Yes
(Draw this picture). Name ALL the angles that are congruent to angle 1?
4, 5, 8
Solve the equation: 2x + 6 = 2(x - 3)
No solution
A 12ft ladder was placed 5ft away from a wall. At what height does top of the ladder hit the wall? Round to the nearest tenth.
10.9ft
How much higher is 1.5 x 10^5 feet than 9.3 x 10^4 feet? Write the answer in scientific notation.
5.7 x 10^4
Jayda has $300 in her bank account and plans on saving $20 a week. George has $150 in his bank account and plans on saving $50 a week. Who has more money in their bank account after 5 weeks?
They have the same amount after 5 weeks.
Angle A is represented by the expression 2x+4. Angle B is represented by the expression 3x+6. If angle A and angle b are complementary, what is the value of x?
x = 16
Solve the equation:
x = 6
Point W (2, -3) was dilated by a scale factor of 3, translated four units to the right, and then reflected over the x axis. What are the coordinates of W''?
(10, 9)
How many times greater is 1.2 x 10^6 than 2.5 x 10^5? Write the answer in STANDARD form.
4.8 times greater
The population of Memphis in 1960 was 550,000 and in 1990 it rose to 727,000. What is the average rate of change that represents the growth of people per year in Memphis?
5,900 people per year
Angle W is represented by the expression x + 10 and Angle Y is represented by the expression 2x + 5. Angle W and angle Y are vertical angles. What is the measure of angle W?
15 degrees