A statement that two quantities are equal.
What is an Equation
The sum of 8 and x
x + 8
Solve 5 - (2x - 3) = 7 for x
What is x = 1/2
p=4c; solve for c
c = p/4
What is the name of this formula
y=mx+b
Slope Intercept Form
A symbol (usually a letter of the alphabet) used to represent an unknown number.
What is a Variable.
8 shared equally among x
8/x
Solve d= rt for t
t = d/r
What is the name of this formula?
Ax + By = C
Standard Form
An equation that contains two or more variables
Literal Equation
Fifteen more than twice a number is twenty-four. x = the number
What is 2x + 15 = 24
What is the 1st step to solve the equation
-2(3x+1)-4=12
What is the Distributive Property
Multiply -2 by the terms inside of the parenthesis
-3a -3 = -2n + 3p; solve for a
(-3+2n-3p)/3
In the equation, y= 3x+1, identify the slope and the y-intercept
Slope: 3
y-intercept: 1
In the equation y=mx+b, what does m stand for?
What is the slope?
Twice the sum of a number and five is eighty. x = the number
What is 2(x+5) = 80
Solve S = n(a+L)/2 for n. for n
What is n = 2S/a + L
Write the following equation in slope-intercept form:
4x - 2y = 8
y = 2x + 4
A tutor works with a group of students. The tutor charges $40 plus $30 for each student in the group. Today the tutor has s students and charges a total of $220.
30s + 40 = 220
Solve for v
1/5v + gc = a
v= 5a - 5gc
v= 5 (a-gc)
Write an equation to represent this graph
y= -3x + 3