Easy
10x-4=-3x+9
Solve the for x
x=1
What are the solutions to the equation
5|x-3|-5=5
x=1
x=5
Write an inequality for the statement below:
I want to buy at least 10 books at the library. Use the variable b to represent the number of books you buy.
b > or equal to 10
What type of function is this equation
3x2+6x+2
Quadratic
I am in an algebraic expression and am either a numerical or constant quantity placed before a variable. What am I?
Coffificent
a+xb=g
Solve for b
b=g-a/x
What is the equation that gives you the axis of symmetry in a quadratic problem?
-b/2a
2x2-12=20
Solve this equation
x=+or- 4
Solve the equation
3|2x+4|+36=0
x=-8
x=4
A factory produces cans, the margin of error is 3% +or- 4.5%. They produce 250,000 cans per year. Find the lower and upper bound
Lower bound: 238750
Upper Bound: 261250
Find the slope from the 2 points (-1,7)(-3,8)
-1/2 or -0.5
1,2,3,3,4,5,7,8,10
Find the mean and range of the data. (round the mean to the nearest hundredth)
Mean:4.78
Range:9
Change this Radical to Exponential form
square root of x5
x5/2
Which equation represents exponential decay?
A. 2(1-0.5)x
B. 3(1.5)x
C. 4(1+0.8)x
A
f(x)= (the square root of x+7) -5, find x when f(x) = 3
x=57
Find the vertex in the equation
y=2(x-2)+6
(2,6)
Solve the system of equations:
y=2x-20
8x+7y=80
(10,0)
4x+5y=10
Find the x and y intercepts
x int:2.5
Y int:2
A line with the equation of y=2x+5
Write an equation with a perpendicular slope and goes through the point (2,6)
y-6=-1/2(x-2)
2x2 +10x+17=0
Complete the square
2(x+5)2-33
This equation is in point slope form: y-5=2(x-6)
Change it into slope-intercept form
y=2x-7
What does the y-intercept represent in a real world equation?
starting/initial value
Describe this equation on how it would look on a graph
2|x+5|+2
Stretch by a factor of 2
Go left by a factor 5
Go up by a factor of 2
What are the solutions to the equation
x2-12x=64
x=16
x=-4
At Lexington Middle School, some students took a survey about whether or not they liked school lunch. There were 300 students that took the survey and an average of 10% said they liked the lunch. If the whole school of 931 students took the survey what would be the average amount of students that don't like the school lunch?
372