Question

Given the function k(t)=2t−1: a. Evaluate k(2). b. Solve(k)=7.

Answer 1

Answer:

$k(2) = 3$

$t = 4$

Step-by-step explanation:

Given

$k(t) = 2t - 1$

Solving (1): k(2)

Take t as 2 such that t = 2

This gives

$k(2) = 2 * 2 - 1$

$k(2) = 4 - 1$

$k(2) = 3$

Solving (2): k(t) = 7

Substitute 7 for k(t)

$7 = 2t - 1$

Add 1 to both sides

$7 + 1 = 2t - 1 + 1$

$2t = 8$

Divide both sides by 2

$t = \frac{8}{2}$

$t = 4$