Question

solve $f = \frac{1}{3}rw$ for $r$. \
$\bigcirc r = \frac{w}{3f}$ \
$\bigcirc r = \frac{3f}{w}$ \
$\bigcirc r = \frac{3w}{f}$ \
$\bigcirc r = \frac{f}{3w}$ \
\
question 14 \
what is the $y$-intercept of $3x + 6y = 18$? \
$\bigcirc (0, 3)$ \
$\bigcirc (3, 0)$ \
$\bigcirc (0, 6)$ \
$\bigcirc (6, 0)$

Explanation:

Problem 1: Solve $F = \frac{1}{3}rW$ for $r$

Step1: Multiply both sides by 3

$3F = rW$

Step2: Divide both sides by $W$

$r = \frac{3F}{W}$

Problem 2: Find y-intercept of $3x + 6y = 18$

Step1: Set $x=0$ for y-intercept

$3(0) + 6y = 18$

Step2: Simplify and solve for $y$

$6y=18 \implies y=3$
The y-intercept is the point $(0, 3)$.

Answer:

1. $r = \frac{3F}{W}$
2. $(0, 3)$