Answer:
circle= 5, triangle= 3
Step-by-step explanation:
Please see attached picture for full solution.
Depends on how many cars your talking about.Be more descriptive.
Answer:
- Positive at (-9, 2)
- Negative at ( -oo, -9) or (2, + oo)
Step-by-step explanation:
<u>Given function</u>
<u>Getting zero's</u>
- -2x^2 - 14x + 36 = 0
- x^2 + 7x - 18 = 0
- x = ( -7 ± √(49 +72))/2 = ( -7 ± 11)/2
- x = - 9 and x = 2
<u>As the x^2 has negative coefficient, the function is positive between -9 and 2</u>
<u>And it is negative at:</u>
- x < -9 and
- x > 2
- or
- ( -oo, -9) or (2, + oo)
as you already know, we start off by doing a quick switcheroo on the variables, and then we solve for y to get the inverse,
and if you run a vertical line test on that expression, you'll find that it doesn't pass it, meaning is not a function.