Question

0. The function F(x) =9x by 5+32 is the formula to convert x°C to Fahrenhei
5
units. Find
(i) F(0), (ii) F(-10), (iii) the value of x when f(x) = 212.
Interpret the result in each case.
19XO
Hints (i) f(0) = +32 = 32 = 0°C = 32°F.
5
19 X (-10)
(ii) F(-10) =
+32 = 14 = (-10)°C = 14°F.
+32}
{$X$10
) - 32
(iii) F(x) = 212 =
9x
+32 = 212 > x = 100 = 212°F = 100°C.
5​

Answer 1

Answer:

F(0), (ii) F(-10), (iii) the value of x when f(x) = 212.

Interpret the result in each case.

19XO

Hints (i) f(0) = +32 = 32 = 0°C = 32°F.

5

19 X (-10)

(ii) F(-10) =

+32 = 14 = (-10)°C = 14°F.

+32}

{$X$10

) - 32

(iii) F(x) = 212 =

9x

+32 = 212 > x = 100 = 212°F = 100°C.

5