Answer:
7.3
Step-by-step explanation:
For this question, you must use the distance formula. The distance formula is based around Pythagorean Theorem, so you will see some similarities.
Distance =
X2 is 7 (X coordinate of school)
X1 is 5 (X coordinate of friend's house)
7 - 5 = 2
2^2 = 4
Y2 is 7 (Y coordinate of school)
Y1 is 0 (Y coordinate of friend's house)
7 - 0 = 7
7^2 = 49
4 + 49 = 53
= 7.2801...
<em>Round to the nearest tenth...</em>
<em>7.3</em>
For this case we have the following system of equations:
To solve, we clear "x" from the second equation:
We substitute "x" in the first equation:
We clear the value of the variable "y":
We look for the value of the variable "x":
Thus, the solution of the system is given by:
Answer:
Option D
Answer:
3. <u>y = -8x + 2</u>
f⁻¹(x) = -(18)x + 1/4
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4.<u> y = (2/3)x - 5</u>
f⁻¹(x) = 1.5x + 7.5
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5. <u>f(x) = 2x² - 6</u>
f⁻¹(x) =
-----------------------------------------
6. <u>y = (x - 3)²</u>
f⁻¹(x) = 3 +