the answer is b its like a mirror on opposite sides
Age>8. I think ..............
It's obviously going to be a multiplication property, because multiplication is being used here.
It's not multiplicative inverses. (this is when two numbers, specifically something like 2 and 1/2, multiply to make 1)
It's also not the distributive property. An example of that would be if you had 5(3+8) and you multiplied the 5 into each term inside the parentheses to get 15+40.
The correct answer would be the associative property of multiplication<em /><em>,</em> which states that you can multiply numbers together in any order. Here, we have 5 times (3 times 8), but the parentheses can be ignored because of this property. Then we would go ahead and just do the 5 times 3 to get the 15×8.
Let's take a look at the frist problem. 2 and 3 can be solved the same way.
First of all you have to rewrite your equation 3x + y = 5 (this is a standard form) in slope-intercept form by subtracting 3x from both sides of the equation. We have y = -3x +5. That means the sloppe of the line is
m=-3 (if we use y = mx+b form of the linear equation). The line which is perpendicular to that will have the slope equal to the reciprocal of (-3) taken with negative sign. Thus, the new slope equals 1/3. Or your equation for the perpendicular line should be like
y = (1/3)x +b
In order to find "b" use the point given in the problem. If x =-9 y =3. Thus, we have
3 = (1/3)(-9) +b = -3 +b or b = 3+3 =6
The equation for a perpendicular line becomes
y = (1/3)x +6
Repeat the same steps for problems 2 and 3.
Plug in the values
2(-1) + 2 = 2
-2 + 2 = 2
0 = 2, false
(-1,2) is not a solution
