Answer:
The slope is -4/5
The y intercept is (0,7)
Step-by-step explanation:
f(x) = 7 -4/5x
Rewriting
y = -4/5x +7
This is in slope intercept form
y = mx+b where m is the slope and x is the y intercept
The slope is -4/5
The y intercept is (0,7)
The function
is a quadratic function due to the highest exponent being 2.
Given functions are:
![u(x)=-x+3x^{2} -8](https://tex.z-dn.net/?f=u%28x%29%3D-x%2B3x%5E%7B2%7D%20-8)
![v(x)=2x^{2} +8x^3+9x](https://tex.z-dn.net/?f=v%28x%29%3D2x%5E%7B2%7D%20%2B8x%5E3%2B9x)
![y(x)=x^{2} +3x^5+4](https://tex.z-dn.net/?f=y%28x%29%3Dx%5E%7B2%7D%20%2B3x%5E5%2B4)
![z(x) =7x^{2} +2x^3-3](https://tex.z-dn.net/?f=z%28x%29%20%3D7x%5E%7B2%7D%20%2B2x%5E3-3)
<h3>What is a quadratic function?</h3>
A function of the form
with
is called a quadratic function means the highest exponent of polynomial should be 2.
Let us check one by one.
![u(x)=-x+3x^{2} -8](https://tex.z-dn.net/?f=u%28x%29%3D-x%2B3x%5E%7B2%7D%20-8)
Highest exponent =2
The function is also of form
so u(x) is a quadratic function.
The functions v(x), y(x), and z(x) are having highest exponents as 3,5, and 3 respectively so they are not quadratic functions.
Hence, the function
is a quadratic function due to the highest exponent being 2.
To get more about quadratic functions visit:
brainly.com/question/1214333
The +2 goes on the Y-Axis… From
the 2 count up 3 times and go to the right 2 times
Answer:
The approximate solution to the system is (1.2, 4.4)
x = 1.2 and y = 4.4
Step-by-step explanation:
The solution of the system of linear equations equation y = –0.25x + 4.7 and y = 4.9x – 1.64 is shown in the attached graph. The red line represents the equation y = –0.25x + 4.7 and the blue line represents the equation = 4.9x – 1.64.
The solution of the system of equations is their point of intersection shown on the graph.
The point of intersection is (1.231, 4.392). To the nearest tenth, it is (1.2, 4,4). So x = 1.2 and y = 4.4.
So the approximate solution to the system is (1.2, 4.4)