Answer:
3x+4=y
x+y=32
Step-by-step explanation:
x= magazine book price
y=history book price
you need to multiply the price of the magazine by 3 and add 4 to get the price of the history book, 3x+4=y.
You also need to add the price of the magazine and history book to get $32, x+y=$32.
Binomial
Bi means two. So you have 2 terms in a binomial. x^2 + 2 is a binomial. In this example, they cannot be added. There is one sign between the 2 terms. In this case a plus sign.
You have a binomial in the question's table. It is 3x - 9. 2 terms 1 sign.
Trinomial
Tri means three. You have 3 terms in a trinomial. You normally have 2 signs (at least) but you could have 3. All the terms are unlike.
x^2 + 2x - 1 is a a trinomial.
You have 1 trinomial in your question.
y = - 3x^2 - 6x + 9
This has 3 signs which is not normal but it is not unique.
Monomial
Mono means one. You have two monomials in your question.
2x^2 and - 2 Yes a constant can be a monomial.
Quadratic.
A quadratic has very specific properties.
The highest power of a quadratic must be x^2.
x^2 + 3x + 2 is a quadratic.
3x^2 - 4x + 2 is a quadratic.
-2x^2 - 5x + 3 is a quadratic.
x^2 + 5 is a quadratic.
- 2x^2 is a quadratic.
A quadratic may or may not have a linear term as in 3x
A quadratic may or may not have a constant term [yet to be defined]
Linear
A linear equation must have 1 on the variable on both sides of the equal sign.
y = 3x is linear
y = 3x + 7 is linear.
y + 3 = 3x + 2 is linear. The 3 can be put on the right by subtracting 3 from both sides.
y = 2x - 1
y= 3x - 9 is a linear equation.
When you graph 3x - 9 you get a straight line.
y = 3x - 9, you get a straight line. Go to desmos and try it.
Constant.
Has no variables associated connected to it although a line can consist of a constant on one side.
3 is a constant.
34 is a constant.
y = 8 is constant. It is a line that is parallel to the x axis going through 8.
0 is a constant.
y = 0 is the x axis.
Exponential
is a constant raised to a variable power.
y = 3^x. You don't have one of these.
Naming by power.
You have two equations that are raised to the power of 2.
One is the first monomial
the second is the last one.
One has a power going to 1 ( the third one)
What's the power on the constant.
3x^2 + 6x - 10 = 0
x = [-6 +/- sqrt(^2 - 3*3*-10)] / 2*3
= 1.08 and -3.08
Other x -intercept is (-3.08,0)
Hello,
We can say that a grain of sand weighs 0.0006g.
7200kg=7200000g
7200000/0.0006=7.2*10^(6)/6*10(-4)=1.2*10^(10)
So, you have 12000000000 (or 1.2*10^(10)) grain of sand in 7200kg of sand.
Answer:
(-3,0) and (0,-6)
Step-by-step explanation:
