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Scatter plot with geom_smooth(), facet, labels & theme geom_smooth() 
library(tidyverse)

## ── Attaching core tidyverse packages ──────────────────────── tidyverse 2.0.0 ──
## ✔ dplyr     1.1.4     ✔ readr     2.1.5
## ✔ forcats   1.0.0     ✔ stringr   1.5.1
## ✔ ggplot2   3.5.1     ✔ tibble    3.2.1
## ✔ lubridate 1.9.3     ✔ tidyr     1.3.1
## ✔ purrr     1.0.2     
## ── Conflicts ────────────────────────────────────────── tidyverse_conflicts() ──
## ✖ dplyr::filter() masks stats::filter()
## ✖ dplyr::lag()    masks stats::lag()
## ℹ Use the conflicted package (<http://conflicted.r-lib.org/>) to force all conflicts to become errors

  CO2 %>%
    ggplot(aes(conc, uptake, color = Treatment)) +
    geom_point(size = 3, alpha = 0.5) +
    geom_smooth(se = F) +
    facet_wrap(~Type) +
    labs(title = "Scatter plot with geom_smooth(), facet & labels") +
    theme_bw()

## `geom_smooth()` using method = 'loess' and formula = 'y ~ x'
plot of chunk unnamed-chunk-1
geom_smooth() with method = lm 
library(tidyverse)

  CO2 %>%
    ggplot(aes(conc, uptake, color = Treatment)) +
    geom_point(size = 3, alpha = 0.5) +
    geom_smooth(method = lm, se = F) +
    facet_wrap(~Type) +
    labs(title = "Scatter plot with geom_smooth(), facet & labels") +
    theme_bw()

## `geom_smooth()` using formula = 'y ~ x'
plot of chunk unnamed-chunk-2