MISC
The slope of the line x = 2
What is undefined
The slope of the line that passes through the points (1, 2) and (-3, 7)
What is -5/4
Solve the system of equations: x + 3y = 1 and -3x - 3y = -15
(7, -2)
Write 0.034 in scientific notation
3.4 x 10-2
Solve for x: 3(x - 2) + 2 = 6x - 3x + 9
no solution
What property is illustrated? 5 = 5
Reflexive
The slope of the line 3x + 2y = 4
What is -3/2
What method would you use to solve the system of equations: y = -2x + 20 and 6x - 5y = 12
Substitution (there is a letter that is isolated)
What is the x-intercept of the line 2x - 4y = 10?
5
Solve for x: -2(x + 1) + 3x = 4x + 1
x = -1
Translate nine less than twice a number.
2x - 9
Kelsey earns a base salary of $400 and earns $30 per hour. Write the equation that represents this situation if x = # of hours, and y = the total amount Kelsey earns.
What is y = 30x + 400
Solve the system of equations: y = -2x + 20 and 6x - 5y = 12
(7, 6)
One forth of a number increased by 3 is 10, what is the number?
The number is 28
Solve for x: 2x + 5x - 5 = 7x - 5
Infinitely many solutions
When you see a negative exponent you should think....
FRACTION!
A line has a slope of 4 and passes through the point (2, -4). What is the equation of the line?
a. y = 4x - 8
b. y = 4x - 12
c. y = 4x - 4
d. y = 4x+1
b. y = 4x - 12
When you are solving a system, what are you looking for?
Where the two lines intersect.
Which line has a slope of 3 and a y-intercept of -1? a. y = 3x - 1 b. y = 2x - 3 c. y = 2 - 3x d. y - 2 = 3x
a. y = 3x - 1
Write the equation: Four less than twice a number is 9
2x - 4 = 9
Allie wants to buy her mom a Christmas present. She already has some money saved and she also earns an hourly rate at her after school job. The equation y = 20x + 40 represents this situation if x = # hours and y = total amount of money. What does the y-intercept represent?
a. Allie already saved $40
b. Allie earns $20 per hour
c. Allie already saved $20
d. Allie earns $40 per hour
a. Allie already saved $40
Which line is vertical?
a. y = 2
b. x = y
c. x = 4
d. y = 2x + 1
c. x = 4
If two lines are parallel, what is the answer?
No solution
Translate: four times the sum of a number and three
4(x + 3)
Solve the equation: (6/4)x= 12
x = 8