diff --git a/Userland/Libraries/LibGfx/AffineTransform.cpp b/Userland/Libraries/LibGfx/AffineTransform.cpp
index 8ef5b78ea3..b32258977e 100644
--- a/Userland/Libraries/LibGfx/AffineTransform.cpp
+++ b/Userland/Libraries/LibGfx/AffineTransform.cpp
@@ -12,16 +12,6 @@
 
 namespace Gfx {
 
-bool AffineTransform::is_identity() const
-{
-    return m_values[0] == 1 && m_values[1] == 0 && m_values[2] == 0 && m_values[3] == 1 && m_values[4] == 0 && m_values[5] == 0;
-}
-
-bool AffineTransform::is_identity_or_translation() const
-{
-    return a() == 1 && b() == 0 && c() == 0 && d() == 1;
-}
-
 float AffineTransform::x_scale() const
 {
     return AK::hypot(m_values[0], m_values[1]);
diff --git a/Userland/Libraries/LibGfx/AffineTransform.h b/Userland/Libraries/LibGfx/AffineTransform.h
index 693f6652b5..74a69060ea 100644
--- a/Userland/Libraries/LibGfx/AffineTransform.h
+++ b/Userland/Libraries/LibGfx/AffineTransform.h
@@ -25,8 +25,15 @@ public:
     {
     }
 
-    bool is_identity() const;
-    bool is_identity_or_translation() const;
+    [[nodiscard]] bool is_identity() const
+    {
+        return m_values[0] == 1 && m_values[1] == 0 && m_values[2] == 0 && m_values[3] == 1 && m_values[4] == 0 && m_values[5] == 0;
+    }
+
+    [[nodiscard]] bool is_identity_or_translation() const
+    {
+        return m_values[0] == 1 && m_values[1] == 0 && m_values[2] == 0 && m_values[3] == 1;
+    }
 
     void map(float unmapped_x, float unmapped_y, float& mapped_x, float& mapped_y) const;