What is a possible equation for f(x)? f(x) intersects the x-axis at -3 and 5.

Step-by-step explanation:

One option for an equation that intersects the x-axxis at -3 and 5 would be

This simplifies to

A possible equation for f(x) is x^2 - 2x - 15

Step-by-step explanation:

F(x) intersects the x-axis at -3 and 5. A parabola is formed and it cuts the x axis at x = -3 and x = 5.

To determine the equation for f(x), we would multiply (x + 3) by (x - 5). It becomes

(x + 3)(x - 5)

We would expand the parentheses by multiplying each term in the first parentheses by each term in the second parentheses. It becomes

= x^2 - 5x + 3x - 15

= x^2 - 2x - 15

may i see the picture? it would a lot, xox

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.