The sale price of an item is 0.75 the original price of the item, x. Which statement explains why both 34x and 0.75x can find th
2 answers:
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Answer:
1. (7,-9)
2. (4,0) and (10,0)
3. (3,0) and (-3,0)
4. (0,-9)
5. (-1,-32)
Step-by-step explanation:
To find the vertex use the formula
First make the equation into a quadratic equation.
Now it is in the form
Now we can substitute the values
Now we have 7 as our x value for the vertex we can substitute for y,
So the vertex for 1 is (7,-9)
To find the intercepts for 2 & 3, they basically already give it to you. You just need to find a value for x for x-4 that will equal it to 0 and another for x for x-10 that will equal it to 0.
4 is slightly different but start the same,
Here, c (9) just shows the graph move down 9, so the y intercept = 9.
5 is the same process as 1,
Vertex,
Substitute,
So the vertex is (-1,-32)
Answer:
<em>The equation will be: </em>
Step-by-step explanation:
The number of student tickets that were sold
and the number of other tickets that were sold
Student tickets cost $3 a piece and tickets for everyone else cost $5 each.
So, <u>the total cost of</u> <u>student tickets</u>
and <u>the total cost of</u>
<u>other tickets</u>
Given that, the drama club sold <u>total $779 worth of tickets</u>.
So, the equation will be: