Answer:
Option c
Step-by-step explanation:
First multiply matrix A by -7.
Then multiply the matrix B by -6.
When multiplying a matrix by a number x you must multiply each element of the matrix by x.
<em><u>Then we perform operation -7A
</u></em>
<u><em>Now we perform operation -6B
</em></u>
Now we add the resulting matrices
Answer:
y=4x-3
Step-by-step explanation:
First, write your equation as y=4x+b. Plug in your coordinate to the equation, it should look like this: -7=4(-1)+b. Multiply 4 by -1 to get -4. It should look like this: -7= -4+b. Add 4 to both sides to get your y-intercept of -3. Go back to your original equation and plug in -3 to b. This is your final equation: y=4x-3. Hope this helped!
Answer:
7/3 or 2 1/3
Step-by-step explanation:
Answer:
Both of those are functions.
Step-by-step explanation:
is a parabola that opens up.
Any upward or downward parabola is a function because they pass the vertical line test.
![x=\pm \sqrt{1-y}{/tex]Square both sides:[tex]x^2=1-y](https://tex.z-dn.net/?f=x%3D%5Cpm%20%5Csqrt%7B1-y%7D%7B%2Ftex%5D%3C%2Fp%3E%3Cp%3ESquare%20both%20sides%3A%3C%2Fp%3E%3Cp%3E%5Btex%5Dx%5E2%3D1-y)
Subtract 1 on both sides:
Multiply both sides by -1:
So this is a another parabola and it is faced down. So this is also a function.
wit 
willl always be a parabola.
If 
then it is open up.
If 
then it is open down.
Upwards and downward parabolas will always be functions.
are also parabolas but these open to the left or right. These will not be functions because they will not pass the vertical line test.
The answer to this question is A, l=wA because you must move it to the other side
