Answer:
y = ± sqrt(x+7)
Step-by-step explanation:
y = x^2 -7 solve for 'x' .... add 7 to both sides
y+7 = x^2 sqrt both sides
+- sqrt(y+7) = x switch 'x' and 'y'
y = +- sqrt(x+7)
The temperature at 7:00 pm is:
Are the sides consistent with the Pythagorean theorem?
37² + 54² ≟ 62²
1369 + 2916 = 4285 ≠ 62²
Not a right triangle.
