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Wed Apr 17
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M4|L11
On Both of the Lines
Erica and Jared are tracking the number of kilometers they bike. Erica had already biked
8km, ar continued biking
4km per day. Jared had already biked
2km, and continued biking
6km per day. 4 )
Write an equation that represents
y, the total number of kilometers Erica has biked after
x days.
1
2
3
age
5
6
(7) 8
믐
0
(I)

Wed Apr $17$ $\newline$ AA $\newline$ zearn.org $\newline$ c $\newline$ $\log$ in to $\newline$ SSO Launch... $\newline$ Math | Top-r... $\newline$ Math | Top-r... $\newline$ Zearn $\newline$ zearn $\newline$ Log in to $i-R$ ... $\newline$ M $4$ |L $11$ $\newline$ On Both of the Lines $\newline$ Erica and Jared are tracking the number of kilometers they bike. Erica had already biked $8 \mathrm{~km}$ , ar continued biking $4 \mathrm{~km}$ per day. Jared had already biked $2 \mathrm{~km}$ , and continued biking $6 \mathrm{~km}$ per day. $4$ ) $\newline$ Write an equation that represents $y$ , the total number of kilometers Erica has biked after $x$ days. $\newline$ $1$ $\newline$ $2$ $\newline$ $3$ $\newline$ age $\newline$ $5$ $\newline$ $6$ $\newline$ ( $7$ ) $8$ $\newline$ 믐 $\newline$ $0$ $\newline$ (I)

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Find equations of tangent lines using limits

Full solution

Q. Wed Apr

17

\newline

AA

\newline

zearn.org

\newline

c

\newline

\log

in to

\newline

SSO Launch...

\newline

Math | Top-r...

\newline

Math | Top-r...

\newline

Zearn

\newline

zearn

\newline

Log in to

i-R

...

\newline

M

4

|L

11

\newline

On Both of the Lines

\newline

Erica and Jared are tracking the number of kilometers they bike. Erica had already biked

8 \mathrm{~km}

, ar continued biking

4 \mathrm{~km}

per day. Jared had already biked

2 \mathrm{~km}

, and continued biking

6 \mathrm{~km}

per day.

4

)

\newline

Write an equation that represents

y

, the total number of kilometers Erica has biked after

x

days.

\newline

1

\newline

2

\newline

3

\newline

age

\newline

5

\newline

6

\newline

(

7

)

8

\newline

믐

\newline

0

\newline

(I)

Erica's Starting Distance: Erica starts with $8\,\text{km}$ already biked.
Daily Increase in Distance: She bikes $4\,\text{km}$ more each day.
Equation for Total Distance: The equation for the total distance Erica bikes after $x$ days is $y = 8 + 4x$ .
Checking the Equation: To check, if $x = 1$ (after $1$ day), then $y = 8 + 4(1) = 12$ km, which makes sense.

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