Literal Equations
Solve:
3x-4=14
x = 6
Algebra: Is this a function: {(1, 4), (2, 4), (3, 4)}
Yes, the y-values can repeat but the x-values cannot.
Algebra: What is the slope-intercept form of a linear equation
Algebra: y= mx + b
What is the slope of a horizontal line? Is it a function?
0, yes it is a function.
What is the definition of a function?
Every y-value has its own x-value.
or X-values do NOT repeat.
True or False: Mr. Barlow is your favorite teacher and Ms. G could never.
True...No cap in my rap
Solve:
10-2x=12
x = -1
What type of function is the following equation?
Y=2x+10
Linear Function
What is the slope of the following equation?
y=12-2x
-2
What is the slope of a vertical line? Is it a function
Undefined; it is not a function
Identify the slope and the y-intercept
y=mx+b
The slope is "m" and the y-int is "b"
How many kids does Mr. Barlow have?
0 biological kids, but he has 106 students
Solve for x
21 + x = 2(x - 6)
x = 33
What type of function is the following equation?
x^2-2x-10
Quadratic function
What is the standard form AND the point-slope form of a line?
Ax+By=C
y-y1=m(x-x1)
What is the slope of the following function
2x+3y=10
-2/3
What are the formulas for x-intercept, y-intercept, and slope in the standard form.
Remember:
Ax+By=C
x-Intercept = C/A
y-Intercept = C/B
slope=-A/B
What is Mr. Barlow's favorite anime/manga series.
One Piece!
Solve for B
*Double Points*
A=1/2Bh
B=(2A)/h
Algebra: What's the domain and range of
x^2+4x+3
Must answer using either a complete sentence or inequalities.
*Hint use Desmos or TI-84*
Domain is all real numbers.
Range is all real numbers greater than or equal to -1. Or you can say
y>=-1
Write the following equation in slope-intercept form: 5(x + 2y) = 20
*Double Points*
y = -1/2x + 2
Find the slope between points (20,7) and (5,10)
-3/15 = -1/5
Which is true?
A) Parallel lines have different slopes with the same y-intercept.
B) Parallel lines have the same slope with different y-intercepts.
B) Parallel lines have the same slope with different y-intercepts
How many years has Mr. Barlow been teaching?
This is his first year!
Solve for h
S=Ph+2B
h=(S-2B)/P
The population of a town was 10,000 in the year 2020. A fatal virus impacted the town now the population is decreasing by 25% each year. What type of function is this and what is the population of the town today?
*Triple Points if both answers are correct*
This is an exponential function.
p(x)=10,000(1-0.25)^4=3,164
What is the slope and y-intercept of the following equation
y-10=-2(x+5)
m=-2
Y-Intercept=(0,0)
Put the following function in slope-intercept form
*Double Points*
y+2=-3(x-4)
y=-3x+10
How do you find the slope of a perpendicular line?
*Double Points if you can give me an example*
Negative reciprocal; flip the sign and flip the fraction.
How old is Mr. Barlow?
*Double Points*
26