ASSUMING This is a straight line so we gotta the formula for a straight line which is y=mx+b, where m represents the slope and b represents the y intercept.
First, we know this line passes through (5,8) and (9,2) we can use these for finding the equations. When we know two points, we use this formula:
y-y=m(x-x)
The first y is 8 and the second one is 2
The first x is 5 and the second one is 9
Plug it in:
8-2=m(5-9)
6=m(-4)
6/-4=m <— simplify this
m= -3/2
*NOTE: another way to find m is by calculating it (y-y)/(x-x)
Now we know m, we have to find b.
All you gotta do is plug everything you know back into the equation y=mx+b
y=mx+b
y=-3/2x+b <— now plug in a point we know(x,y)
8=-3/2(5)+b
8=-15/2+b
8-(-15/2)=b
b=8+15/2
b=16/2+15/2
b=31/2 (now you can write be as a fraction or a decimal in your equation, depending on what your teacher told you to use)
*NOTE: it is best to use fractions instead of decimals as it is more accurate sometimes.
Now we know all the variables that need to be known, we just need to rewrite the formula of the equation so the teacher can see.
m=-3/2
b=31/2
We don’t need to plug in x or y since it could have different values (since a straight line has MANY co-ordinates)
SO OUR EQUATION IS=
y=(-3/2)x+31/2
Hope you understand this, feel free to ask me anything!
Should we simplify or solve for m...?
<u><em>v=-6 is the right answer. </em></u> First you had to subtract by 7 from both sides of equation, and it gave us,
. And then simplify, and it gave us,
. You can also add by 8v from both sides of equation, and it gave us,
. Next simplify, and it gave us,
. Then you divide by 2 from both sides of equation, and it gave us,
. And finally simplify, and it gave us the answer is <u><em>v=-6 is the right answer.</em></u> Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie
For the first two,the probability is 0.4, and for # 3,the probability is .2
(-2ab^3)(-3a^2b^5)<span>Simplifying
(-2ab3)(-3a2b5)
Remove parenthesis around (-2ab3)
-2ab3(-3a2b5)
Remove parenthesis around (-3a2b5)
-2ab3 * -3a2b5
Reorder the terms for easier multiplication:
-2 * -3ab3 * a2b5
Multiply -2 * -3
6ab3 * a2b5
Multiply ab3 * a2b5
6a3b<span>8</span></span>