Answer:
Step-by-step explanation:
Based on the two graphs I see at the bottom of the photo, you're looking at a quadratic function. The answer you put in is a linear equation.
Quadratic functions follow the form 
, where a, b, and c can be either positive or negative constants.
The table says that the equation, when graphed, should start at the top, slide to the bottom, and then slide back up to the top. So a must be positive.
c has to be -8 since it's the y-intercept.
So far, our equation is 
. We'll need to plug in some points in order to work out what 
and 
are.
Let's use 
as the first set of points, and 
as the second set.
Now we have 2 equations with 2 unknowns. Solve for one variable:
Now substitute that into the second equation:
Now substitute the result into the first equation.
Now substitute our values back into the original equation:
Please let me know if this is correct.
Answer:
A) -230
B) -111
Step-by-step explanation:
A negative plus a negative is a negative
- + - = -
Answer:
Issac's dog weighs 19 pounds
Step-by-step explanation:
Let x be Issac's dog's weight
- Translate the problem into an algebraic expression: x + (x + 12) = 50
- Simplify: 2x + 12 = 50
- Subtract 12 from each side, so it now looks like this: 2x = 38
- Divide each side by 2 to cancel out the 2 next to x. It should now look like this: x = 19
I hope this helps!
4x+ 6x= 45
10x= 45
x= 4,5
girl= 6*4,5= 27
Answer:
Step-by-step explanation:
1) Calm down, your motivated and determined so you will do awesome!
2) write the date AND the chapter the notes are from
3) Write down EVERYTHING even the stuff your teacher says that you dont need to write down
4) use a highlighter or underline important info, your brain cant memorize everything!
5) draw pictures! math is all about visualization
6) if your teacher is teaching a new concept he/she will definetly give you some examples to write down, make up your own examples and solve them to go beyond
7) abbreviate, teachers talk pretty fast so you may struggle to get everything down, if you abbreviate writing will be faster, just dont forget to make a key for your abbreviations so that you dont forget!
8) ask for help!- the most effective tool in the shelf
9) go online and search up worksheets to do
10) write down in you notebook each step you need to take in order to get the answer.
11) Hope this helps! and good luck!
