The function $t$ which maps temperature in degree Celsius into temperature in degree Fahrenheit is defined by $t(C) = \frac{9C}{5} + 32$. Find $t(-10)$.
- A$14$
- B$16$
- C$18$
- D$20$
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Similar Questions
Let $N$ be the set of natural numbers. Define a function $f: N \rightarrow N$ by $f(x) = 2x + 1$. Using this definition,complete the table given below.
$x$ $1$ $2$ $3$ $4$ $5$ $6$ $7$ $y$ $f(1) = \dots$ $f(2) = \dots$ $f(3) = \dots$ $f(4) = \dots$ $f(5) = \dots$ $f(6) = \dots$ $f(7) = \dots$
| $x$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ |
| $y$ | $f(1) = \dots$ | $f(2) = \dots$ | $f(3) = \dots$ | $f(4) = \dots$ | $f(5) = \dots$ | $f(6) = \dots$ | $f(7) = \dots$ |
Easy
View Solution$A$ function $f$ is defined by $f(x) = 2x - 5$. Find the value of $f(7)$.
Easy
View SolutionWhich of the following represents a function?
Which of the following relations are functions? Give reasons. If it is a function,determine its domain and range.
$\{(2,1), (4,2), (6,3), (8,4), (10,5), (12,6), (14,7)\}$
$\{(2,1), (4,2), (6,3), (8,4), (10,5), (12,6), (14,7)\}$
Medium
View SolutionLet $f$ be the subset of $Z \times Z$ defined by $f = \{(ab, a+b) : a, b \in Z\}$. Is $f$ a function from $Z$ to $Z$? Justify your answer.
Medium
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